{"id":32655,"date":"2025-05-13T23:33:18","date_gmt":"2025-05-14T02:33:18","guid":{"rendered":"https:\/\/mastertrend.info\/?p=32655"},"modified":"2026-04-28T14:50:55","modified_gmt":"2026-04-28T17:50:55","slug":"%e6%9c%80%e5%88%9d%e3%81%ae%e3%82%a6%e3%82%a7%e3%83%96%e3%82%a2%e3%83%97%e3%83%aa%e3%82%92%e4%bd%9c%e6%88%90%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/mastertrend.info\/ja\/crea-tu-primera-app-web\/","title":{"rendered":"\u6700\u521d\u306e\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u3092\u4f5c\u6210\u3057\u3001\u30b9\u30c8\u30ec\u30b9\u306a\u304f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u30de\u30b9\u30bf\u30fc\u3057\u307e\u3057\u3087\u3046\ud83d\ude80\ud83d\udcbb"},"content":{"rendered":"<h2 class=\"table-content-link\">\u6700\u521d\u306e\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u3092\u4f5c\u6210: \u30e1\u30e2 + \u30ab\u30a6\u30f3\u30bf\u30fc\u3092\u7c21\u5358\u304b\u3064\u8fc5\u901f\u306b \ud83d\udcdd\u26a1<\/h2>\n<p>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u59cb\u3081\u308b\u306b\u306f\u3001\u8003\u616e\u3059\u3079\u304d\u8a00\u8a9e\u3001\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3001\u65b9\u6cd5\u8ad6\u304c\u975e\u5e38\u306b\u591a\u304f\u3001\u5927\u5909\u306b\u601d\u3048\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u3059\u3079\u3066\u3092 AI \u306b\u59d4\u4efb\u3059\u308b\u65b9\u304c\u7c21\u5358\u3060\u3068\u601d\u308f\u308c\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002\u5fc3\u914d\u3057\u306a\u3044\u3067\uff01 Web \u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306f\u30b7\u30f3\u30d7\u30eb\u3067\u697d\u3057\u3044\u4e0a\u306b\u3001\u4f55\u3088\u308a\u5b8c\u5168\u306b\u7121\u6599\u3067\u3059\u3002 \ud83c\udf10\u2728<\/p>\n<h2 id=\"what-you-rsquo-ll-build\">\u4f55\u3092\u69cb\u7bc9\u3059\u308b\u306e\u304b<\/h2>\n<p>\u3053\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u306b\u5f93\u3046\u3053\u3068\u3067\u3001\u30c6\u30ad\u30b9\u30c8\u30e1\u30e2\u3092\u4fdd\u5b58\u3057\u3001\u6587\u5b57\u6570\u3068\u5358\u8a9e\u6570\u3092\u30ab\u30a6\u30f3\u30c8\u3059\u308b\u30b7\u30f3\u30d7\u30eb\u306a Web \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30a2\u30d7\u30ea\u306f\u30c7\u30fc\u30bf\u3092\u4fdd\u6301\u3059\u308b\u305f\u3081\u3001\u30da\u30fc\u30b8\u3092\u518d\u8aad\u307f\u8fbc\u307f\u3057\u305f\u308a\u518d\u5ea6\u958b\u3044\u305f\u308a\u3057\u3066\u3082\u30c6\u30ad\u30b9\u30c8\u304c\u8a18\u61b6\u3055\u308c\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u30a2\u30c9\u30ec\u30b9\u3084 URL \u306a\u3069\u3001\u5f8c\u3067\u53c2\u7167\u3057\u305f\u3044\u30c6\u30ad\u30b9\u30c8\u3092\u7c21\u5358\u306b\u4fdd\u5b58\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\ud83d\udcc4\ud83d\udd17<\/p>\n<figure><picture><source media=\"(min-width: 1024px)\" data-=\"\" \/><source media=\"(min-width: 768px)\" data-=\"\" \/><source media=\"(min-width: 481px)\" data-=\"\" \/><source media=\"(min-width: 0px)\" data-=\"\" \/><img decoding=\"async\" style=\"display: block; height: auto; max-width: 100%;\" src=\"https:\/\/mastertrend.info\/wp-content\/uploads\/2025\/01\/Crea-Tu-Primera-Aplicacion-Web-Una-App-de-Notas-Sencilla.png\" alt=\"\u30ab\u30ec\u30f3\u30c0\u30fc \u30a8\u30f3\u30c8\u30ea\u3084 URL \u30ea\u30b9\u30c8\u306a\u3069\u306e\u30e1\u30e2\u3092\u8868\u793a\u3059\u308b\u30b7\u30f3\u30d7\u30eb\u306a\u30c6\u30ad\u30b9\u30c8\u30d9\u30fc\u30b9\u306e Web \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u4f8b\u3002\" width=\"960\" height=\"569\" title=\"\"> <\/picture><\/figure>\n<p>\u307e\u305f\u3001\u6587\u5b57\u6570\u3084\u5358\u8a9e\u6570\u3082\u30ab\u30a6\u30f3\u30c8\u3059\u308b\u306e\u3067\u3001\u6587\u5b57\u5217 (\u30c6\u30ad\u30b9\u30c8) \u51e6\u7406\u306e\u5165\u9580\u3068\u3057\u3066\u6700\u9069\u3067\u3059\u3002\u3082\u3061\u308d\u3093\u3001\u30a2\u30d7\u30ea\u306f\u975e\u5e38\u306b\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u3002\u305d\u308c\u304c\u76ee\u7684\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u3053\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u306f\u3001Web \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306e\u57fa\u790e\u3092\u5b66\u7fd2\u3057\u3001\u4e16\u754c\u304c\u3042\u306a\u305f\u306e\u601d\u3044\u901a\u308a\u306b\u5909\u308f\u308a\u307e\u3059\u3002 \ud83e\uddaa\ud83d\udcbb<\/p>\n<h2 id=\"how-you-rsquo-ll-build-it\">\u3069\u3046\u3084\u3063\u3066\u69cb\u7bc9\u3059\u308b\u3064\u3082\u308a\u3067\u3059\u304b?<\/h2>\n<p>Web \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u975e\u5e38\u306b\u591a\u69d8\u3067\u3059\u304c\u3001\u901a\u5e38\u306f HTML\u3001CSS\u3001JavaScript \u3068\u3044\u3046 3 \u3064\u306e\u4e3b\u8981\u306a\u30c6\u30af\u30ce\u30ed\u30b8\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u59cb\u3081\u308b\u524d\u306b\u3001\u305d\u308c\u305e\u308c\u306e\u5f79\u5272\u3092\u7406\u89e3\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002 \ud83d\udcda<\/p>\n<ul>\n<li>HTML: \u30cf\u30a4\u30d1\u30fc\u30c6\u30ad\u30b9\u30c8 \u30de\u30fc\u30af\u30a2\u30c3\u30d7\u8a00\u8a9e\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u69cb\u9020\u3092\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30c6\u30ad\u30b9\u30c8\u3092\u305d\u306e\u610f\u5473\u306b\u5fdc\u3058\u3066\u30de\u30fc\u30af\u3057\u3001\u305f\u3068\u3048\u3070\u6bb5\u843d\u3001\u898b\u51fa\u3057\u3001\u30ea\u30b9\u30c8\u5185\u306e\u9805\u76ee\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u793a\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<li>CSS: \u30ab\u30b9\u30b1\u30fc\u30c9 \u30b9\u30bf\u30a4\u30eb \u30b7\u30fc\u30c8\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u30b9\u30bf\u30a4\u30eb\u3092\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u8a00\u8a9e\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u6bb5\u843d\u3092\u7dd1\u8272\u306b\u3057\u305f\u308a\u3001\u3059\u3079\u3066\u306e\u30ea\u30f3\u30af\u3092\u592a\u5b57\u306b\u3057\u305f\u308a\u3001\u30e1\u30a4\u30f3\u8a18\u4e8b\u306e\u6a2a\u306b\u30b5\u30a4\u30c9\u30d0\u30fc\u3092\u914d\u7f6e\u3057\u305f\u308a\u3067\u304d\u307e\u3059\u3002 \ud83c\udfa8<\/li>\n<li>JavaScript: \u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001Web \u30b5\u30a4\u30c8\u306b\u6a5f\u80fd\u3092\u8ffd\u52a0\u3067\u304d\u307e\u3059\u3002\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u4e00\u90e8\u304c\u8868\u793a\u3055\u308c\u305f\u308a\u975e\u8868\u793a\u306b\u306a\u3063\u305f\u308a\u3059\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u305f\u308a\u3001\u672c\u683c\u7684\u306a\u30ef\u30fc\u30c9\u30d7\u30ed\u30bb\u30c3\u30b5\u3084\u30d3\u30c7\u30aa \u30b2\u30fc\u30e0\u3092\u5b9f\u88c5\u3057\u305f\u308a\u3067\u304d\u307e\u3059\u3002 \ud83c\udfae<\/li>\n<\/ul>\n<p>\u5f7c <a href=\"https:\/\/web.dev\" target=\"_blank\" rel=\"noopener noreferrer\">\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u958b\u767a<\/a> (escrito por miembros del equipo de Chrome) y MDN, la Red de Desarrolladores de Mozilla, son dos excelentes fuentes de informaci\u00f3n sobre tecnolog\u00edas web fundamentales.<\/p>\n<figure><picture><source media=\"(min-width: 1024px)\" data-=\"\" \/><source media=\"(min-width: 768px)\" data-=\"\" \/><source media=\"(min-width: 481px)\" data-=\"\" \/><source media=\"(min-width: 0px)\" data-=\"\" \/><img decoding=\"async\" style=\"display: block; height: auto; max-width: 100%;\" src=\"https:\/\/mastertrend.info\/wp-content\/uploads\/2025\/01\/1736598858_798_Crea-Tu-Primera-Aplicacion-Web-Una-App-de-Notas-Sencilla.png\" alt=\"HTML\u3001CSS\u3001JavaScript \u306e\u5b66\u7fd2\u30ea\u30bd\u30fc\u30b9\u3092\u5099\u3048\u305f web.dev \u30b5\u30a4\u30c8\u306e\u30db\u30fc\u30e0\u30da\u30fc\u30b8\u3002\" width=\"1388\" height=\"734\" title=\"\"> <\/picture><\/figure>\n<h2 id=\"the-app-structure\">\u30a2\u30d7\u30ea\u306e\u69cb\u9020<\/h2>\n<p>\u69cb\u7bc9\u3059\u308b\u30a2\u30d7\u30ea\u306f\u3001index.html\u3001styles.css\u3001script.js \u3068\u3044\u3046 3 \u3064\u306e\u30b7\u30f3\u30d7\u30eb\u306a\u30d5\u30a1\u30a4\u30eb\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\u3002 \ud83d\uddc2\ufe0f<\/p>\n<p>\u30a2\u30d7\u30ea\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306b\u7279\u5225\u306a\u8981\u4ef6\u306f\u306a\u304f\u3001Web \u30d6\u30e9\u30a6\u30b6\u3060\u3051\u304c\u5fc5\u8981\u3067\u3059\u3002\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u6a5f\u80fd\u306f\u306a\u3044\u305f\u3081\u3001PHP \u306a\u3069\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u8a00\u8a9e\u3084\u30ed\u30fc\u30ab\u30eb Web \u30b5\u30fc\u30d0\u30fc\u306f\u5fc5\u8981\u3042\u308a\u307e\u305b\u3093\u3002\u5b8c\u4e86\u3057\u305f\u3089\u3001 <a title=\"Windows 11\u3067\u30ed\u30fc\u30ab\u30ebLinux\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\" href=\"https:\/\/mastertrend.info\/ja\/%e3%83%ad%e3%83%bc%e3%82%ab%e3%83%ab-linux-web-%e3%82%b5%e3%83%bc%e3%83%90%e3%83%bc\/\" target=\"_blank\" rel=\"noopener\" data-wpil-monitor-id=\"5749\">\u30d6\u30e9\u30a6\u30b6\u3067\u76f4\u63a5index.html\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u304f<\/a> \u305d\u3057\u3066\u3059\u3079\u3066\u3046\u307e\u304f\u3044\u304f\u3067\u3057\u3087\u3046\u3002 \ud83d\ude0a<\/p>\n<p>JavaScript \u306f\u30d5\u30a1\u30a4\u30eb \u30b7\u30b9\u30c6\u30e0\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u3053\u306e\u30a2\u30d7\u30ea\u306f\u30c6\u30ad\u30b9\u30c8\u3092\u30c7\u30a3\u30b9\u30af\u4e0a\u306e\u7279\u5b9a\u306e\u30d5\u30a1\u30a4\u30eb\u306b\u66f8\u304d\u8fbc\u307e\u305a\u306b\u4fdd\u5b58\u3059\u308b\u3053\u3068\u306b\u6ce8\u610f\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u30af\u30c3\u30ad\u30fc\u306e\u5f37\u529b\u306a\u4ee3\u66ff\u624b\u6bb5\u3067\u3042\u308b Web \u30b9\u30c8\u30ec\u30fc\u30b8 API \u3092\u4f7f\u7528\u3057\u307e\u3059\u3002 \ud83c\udf6a\ud83d\udcbe<\/p>\n<h2 id=\"how-to-build-the-note-taker\">\u30ce\u30fc\u30c8\u30c6\u30a4\u30ab\u30fc\u306e\u69cb\u7bc9\u65b9\u6cd5<\/h2>\n<p>\u540c\u3058\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u6b21\u306e 3 \u3064\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3057\u3001Web \u30d6\u30e9\u30a6\u30b6\u30fc\u3067 index.html \u3092\u958b\u304d\u307e\u3059\u3002\u307e\u305f\u306f\u3001\u4ee5\u4e0b\u306e\u30b5\u30a4\u30c8\u304b\u3089\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002 <a href=\"https:\/\/github.com\/bobbykjack\/text\" target=\"_blank\" rel=\"noopener\">\u3053\u306eGitHub\u30ea\u30dd\u30b8\u30c8\u30ea<\/a>\u3002 \ud83d\udce5<\/p>\n<h3 id=\"building-the-structure-with-html\">HTML\u3067\u69cb\u9020\u3092\u69cb\u7bc9\u3059\u308b<\/h3>\n<p>index.html \u30d5\u30a1\u30a4\u30eb\u306f\u3001\u30a2\u30d7\u30ea\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u69cb\u9020\u3092 HTML \u3067\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u304c\u6700\u7d42\u88fd\u54c1\u3067\u305d\u308c\u3089\u3092\u7d50\u5408\u3067\u304d\u308b\u3088\u3046\u306b\u3001\u4ed6\u306e 2 \u3064\u306e\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u53c2\u7167\u3092\u542b\u3081\u307e\u3059\u3002<\/p>\n<p>\u3059\u3079\u3066\u306e HTML \u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3068\u540c\u69d8\u306b\u3001\u6700\u4e0a\u4f4d\u30ec\u30d9\u30eb\u306e\u69cb\u9020\u306b\u306f\u3001\u30e1\u30bf\u30c7\u30fc\u30bf\u3092\u542b\u3080\u30d8\u30c3\u30c0\u30fc \u30bb\u30af\u30b7\u30e7\u30f3\u3068\u3001\u30da\u30fc\u30b8\u306b\u8868\u793a\u3055\u308c\u308b\u5b9f\u969b\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u542b\u3080\u672c\u6587\u30bb\u30af\u30b7\u30e7\u30f3\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n<pre><code class=\"hljs html\"><span class=\"hljs-meta\">html<\/span>&gt;\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">html<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">\u982d<\/span>&gt;<\/span>\r\n    ...\r\n<span class=\"hljs-tag\"><span class=\"hljs-name\">\u982d<\/span>&gt;<\/span><\/code><\/pre>\n<p><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">\u4f53<\/span>&gt;<\/span><br \/>\n&#8230;<br \/>\n<span class=\"hljs-tag\"><span class=\"hljs-name\">\u4f53<\/span>&gt;<\/span><br \/>\n<span class=\"hljs-tag\"><span class=\"hljs-name\">html<\/span>&gt;<\/span><\/p>\n<pre><code class=\"hljs html\"><\/code><\/pre>\n<pre><code class=\"hljs html\"><\/code><\/pre>\n<p>\u30d8\u30c3\u30c0\u30fc\u5185\u306e\u30e1\u30bf\u30c7\u30fc\u30bf\u306f\u975e\u5e38\u306b\u7c21\u6f54\u3067\u3001\u30da\u30fc\u30b8 \u30bf\u30a4\u30c8\u30eb (\u30d6\u30e9\u30a6\u30b6\u30fc\u306e\u30bf\u30a4\u30c8\u30eb \u30d0\u30fc\u306b\u8868\u793a\u3055\u308c\u307e\u3059) \u3068\u3001styles.css \u30d5\u30a1\u30a4\u30eb\u3078\u306e\u53c2\u7167\u306e\u307f\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre><code class=\"hljs html\">    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">\u30bf\u30a4\u30c8\u30eb<\/span>&gt;<\/span>\u6587\u7ae0<span class=\"hljs-tag\"><span class=\"hljs-name\">\u30bf\u30a4\u30c8\u30eb<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">\u30ea\u30f3\u30af<\/span> <span class=\"hljs-attr\">\u76f8\u5bfe<\/span>=<span class=\"hljs-string\">\u300c\u30b9\u30bf\u30a4\u30eb\u30b7\u30fc\u30c8\u300d<\/span> <span class=\"hljs-attr\">href<\/span>=<span class=\"hljs-string\">\u300c\u30b9\u30bf\u30a4\u30eb.css\u300d<\/span> \/&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u4f53\u306f\u3088\u308a\u8907\u96d1\u3067\u3059\u304c\u3001\u91cd\u8981\u306a\u90e8\u5206\u306f\u308f\u305a\u304b\u3067\u3059\u3002<\/p>\n<pre><code class=\"hljs html\">    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">\u5206\u5272<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">&quot;\u30ab\u30a6\u30f3\u30bf&quot;<\/span>&gt;<\/span>\r\n        \u8a00\u8449\uff1a <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">\u30b9\u30d1\u30f3<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">\u300c\u8a00\u8449\u300d<\/span>&gt;<\/span>0<span class=\"hljs-tag\"><span class=\"hljs-name\">\u30b9\u30d1\u30f3<\/span>&gt;<\/span>\r\n        \/ \u6587\u5b57\u6570: <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">\u30b9\u30d1\u30f3<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">\u300c\u6587\u5b57\u300d<\/span>&gt;<\/span>0<span class=\"hljs-tag\"><span class=\"hljs-name\">\u30b9\u30d1\u30f3<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\"><span class=\"hljs-name\">\u5206\u5272<\/span>&gt;<\/span><\/code><\/pre>\n<p><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">\u30c6\u30ad\u30b9\u30c8\u30a8\u30ea\u30a2<\/span> <span class=\"hljs-attr\">id<\/span>=<span class=\"hljs-string\">&quot;\u6587\u7ae0&quot;<\/span> <span class=\"hljs-attr\">\u30aa\u30fc\u30c8\u30d5\u30a9\u30fc\u30ab\u30b9<\/span>=<span class=\"hljs-string\">\u300c1\u300d<\/span>&gt;<\/span><span class=\"hljs-tag\"><span class=\"hljs-name\">\u30c6\u30ad\u30b9\u30c8\u30a8\u30ea\u30a2<\/span>&gt;<\/span><\/p>\n<pre><code class=\"hljs html\"><\/code><\/pre>\n<p><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">\u30b9\u30af\u30ea\u30d7\u30c8<\/span> <span class=\"hljs-attr\">\u30bd\u30fc\u30b9<\/span>=<span class=\"hljs-string\">\u300cscript.js\u300d<\/span>&gt;<\/span><span class=\"hljs-tag\"><span class=\"hljs-name\">\u30b9\u30af\u30ea\u30d7\u30c8<\/span>&gt;<\/span><\/p>\n<pre><code class=\"hljs html\"><\/code><\/pre>\n<pre><code class=\"hljs html\"><\/code><\/pre>\n<p>div \u8981\u7d20\u306b\u306f\u3001\u30a2\u30d7\u30ea\u306e\u5358\u8a9e\u6570\u3068\u6587\u5b57\u6570\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u3053\u308c\u306f Web \u30a2\u30d7\u30ea\u306e\u4e0a\u90e8\u306b\u914d\u7f6e\u3055\u308c\u3001\u30c6\u30ad\u30b9\u30c8\u304c\u5909\u66f4\u3055\u308c\u308b\u305f\u3073\u306b\u66f4\u65b0\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u64cd\u4f5c\u306b\u4e0d\u53ef\u6b20\u306a id \u5c5e\u6027\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002 ID \u306e\u5024\u306f\u3001\u30a2\u30d7\u30ea\u304c\u7279\u5b9a\u306e\u30a2\u30a4\u30c6\u30e0\u3092\u8b58\u5225\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u3001\u4e00\u610f\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3092\u884c\u3046\u3068\u3001\u3053\u308c\u3089\u306e\u8981\u7d20\u306e\u30b9\u30bf\u30a4\u30eb\u3092\u8a2d\u5b9a\u3057\u305f\u308a\u3001\u6a5f\u80fd\u3092\u8ffd\u52a0\u3059\u308b\u3068\u304d\u306b\u30bf\u30fc\u30b2\u30c3\u30c8\u3092\u8a2d\u5b9a\u3057\u305f\u308a\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<p>\u30c6\u30ad\u30b9\u30c8\u30a8\u30ea\u30a2\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u306b\u7c21\u5358\u306a\u30c6\u30ad\u30b9\u30c8\u3092\u5165\u529b\u3067\u304d\u308b\u7d44\u307f\u8fbc\u307f\u30d5\u30a9\u30fc\u30e0\u8981\u7d20\u3067\u3059\u3002 autofocus \u5c5e\u6027\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30da\u30fc\u30b8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u3068\u3059\u3050\u306b\u66f8\u304d\u8fbc\u307f\u3092\u958b\u59cb\u3067\u304d\u307e\u3059\u3002\u6700\u5f8c\u306b\u3001\u30da\u30fc\u30b8\u306f JavaScript \u30d5\u30a1\u30a4\u30eb script.js \u3092\u53c2\u7167\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u6642\u70b9\u3067\u3001\u30d6\u30e9\u30a6\u30b6\u3067 index.html \u30d5\u30a1\u30a4\u30eb\u3092\u958b\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u73fe\u6642\u70b9\u3067\u306f\u4f55\u3082\u6a5f\u80fd\u305b\u305a\u3001\u898b\u305f\u76ee\u3082\u826f\u304f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u5404\u6bb5\u968e\u3067\u30a2\u30d7\u30ea\u3092\u30c6\u30b9\u30c8\u3057\u3066\u3001\u57fa\u672c\u90e8\u5206\u304c\u671f\u5f85\u3069\u304a\u308a\u306b\u52d5\u4f5c\u3059\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u306f\u5f79\u306b\u7acb\u3061\u307e\u3059\u3002<\/p>\n<figure><picture><source media=\"(min-width: 1024px)\" data-=\"\" \/><source media=\"(min-width: 768px)\" data-=\"\" \/><source media=\"(min-width: 481px)\" data-=\"\" \/><source media=\"(min-width: 0px)\" data-=\"\" \/><img decoding=\"async\" style=\"display: block; height: auto; max-width: 100%;\" src=\"https:\/\/mastertrend.info\/wp-content\/uploads\/2025\/01\/1736598858_678_Crea-Tu-Primera-Aplicacion-Web-Una-App-de-Notas-Sencilla.png\" alt=\"\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30d6\u30e9\u30a6\u30b6 \u30b9\u30bf\u30a4\u30eb\u3092\u4f7f\u7528\u3057\u305f\u30e1\u30e2\u4f5c\u6210 Web \u30a2\u30d7\u30ea\u306e\u30d3\u30e5\u30fc\u3002\u3059\u3079\u3066\u304c\u5de6\u4e0a\u9685\u306b\u30b0\u30eb\u30fc\u30d7\u5316\u3055\u308c\u3066\u8868\u793a\u3055\u308c\u307e\u3059\u3002\" width=\"960\" height=\"569\" title=\"\"> <\/picture><\/figure>\n<h3 id=\"making-things-look-good-with-css\">CSS\u3067\u898b\u305f\u76ee\u3092\u826f\u304f\u3059\u308b<\/h3>\n<p>CSS \u3092\u4f7f\u7528\u3059\u308b\u3068\u3001Web \u30da\u30fc\u30b8\u306e\u4e00\u90e8\u3092\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u3057\u3066\u3001font-size \u3084 background-color \u306a\u3069\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5024\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u305d\u306e\u90e8\u5206\u306e\u30b9\u30bf\u30a4\u30eb\u3092\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30b5\u30f3\u30d7\u30eb \u30a2\u30d7\u30ea\u306f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u304c\u975e\u5e38\u306b\u57fa\u672c\u7684\u306a\u305f\u3081\u3001\u975e\u5e38\u306b\u6d17\u7df4\u3055\u308c\u305f\u30c7\u30b6\u30a4\u30f3\u306f\u5fc5\u8981\u3042\u308a\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u3001\u3061\u3087\u3063\u3068\u3057\u305f\u30b9\u30bf\u30a4\u30eb\u3067\u3001\u305d\u306e\u89d2\u306e\u7c97\u3055\u3092\u6ed1\u3089\u304b\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 \ud83c\udfa8\u2728<\/p>\n<p>\u307e\u305a\u3001\u30dc\u30c7\u30a3\u306e\u30b9\u30bf\u30a4\u30eb\u3092\u8a2d\u5b9a\u3057\u3066\u5168\u4f53\u7684\u306a\u30c7\u30b6\u30a4\u30f3\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"hljs css\"><span class=\"hljs-selector-tag\">\u4f53<\/span> {\r\n    <span class=\"hljs-selector-tag\">\u30de\u30fc\u30b8\u30f3<\/span>: 0;\r\n    <span class=\"hljs-selector-tag\">\u30d1\u30c7\u30a3\u30f3\u30b0<\/span>: 0;\r\n    <span class=\"hljs-selector-tag\">\u753b\u9762<\/span>: <span class=\"hljs-selector-tag\">\u30b0\u30ea\u30c3\u30c9<\/span>;\r\n    <span class=\"hljs-selector-tag\">\u6700\u5c0f\u9ad8\u3055<\/span>: 100<span class=\"hljs-selector-tag\">vh<\/span>;\r\n    <span class=\"hljs-selector-tag\">\u30b0\u30ea\u30c3\u30c9\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u884c<\/span>: <span class=\"hljs-selector-tag\">\u6700\u5c0f\u30b3\u30f3\u30c6\u30f3\u30c4<\/span> 1<span class=\"hljs-selector-tag\">fr<\/span>;\r\n}\r\n<\/code><\/pre>\n<p>Este CSS utiliza la disposici\u00f3n en cuadr\u00edcula para posicionar los conteos de palabras y caracteres en una fila estrecha sobre el textarea. La propiedad grid-template-rows especifica que la fila del conteo debe ser lo m\u00e1s corta posible (min-content) y el textarea debe llenar el espacio restante (1fr).<\/p>\n<p>\u30ab\u30a6\u30f3\u30bf\u30fc\u884c\u306b\u306f\u3001\u4e3b\u306b\u80cc\u666f\u3092\u901a\u3058\u3066\u3001\u30c6\u30ad\u30b9\u30c8\u306e\u6b8b\u308a\u306e\u90e8\u5206\u3068\u533a\u5225\u3059\u308b\u305f\u3081\u306e\u57fa\u672c\u7684\u306a\u30b9\u30bf\u30a4\u30eb\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre><code class=\"hljs css\"><span class=\"hljs-selector-id\">#\u30ab\u30a6\u30f3\u30bf\u30fc<\/span> {\r\n    <span class=\"hljs-selector-tag\">\u30d5\u30a9\u30f3\u30c8\u30d5\u30a1\u30df\u30ea\u30fc<\/span>: <span class=\"hljs-selector-tag\">\u30b5\u30f3\u30bb\u30ea\u30d5<\/span>;\r\n    <span class=\"hljs-selector-tag\">\u80cc\u666f\u8272<\/span>: <span class=\"hljs-selector-id\">#f7f7f7<\/span>;\r\n    <span class=\"hljs-selector-tag\">\u30c6\u30ad\u30b9\u30c8\u914d\u7f6e<\/span>: <span class=\"hljs-selector-tag\">\u4e2d\u5fc3<\/span>;\r\n    <span class=\"hljs-selector-tag\">\u5e45<\/span>: 100%;\r\n    <span class=\"hljs-selector-tag\">\u30d1\u30c7\u30a3\u30f3\u30b0<\/span>: 0<span class=\"hljs-selector-class\">.5em<\/span> 0;\r\n}\r\n<\/code><\/pre>\n<p>\u6700\u5f8c\u306b\u3001\u30c6\u30ad\u30b9\u30c8\u30a8\u30ea\u30a2\u306f\u3001\u5341\u5206\u306a\u4f59\u88d5\u3092\u6301\u3063\u3066\u8aad\u307f\u3084\u3059\u3044\u30c6\u30ad\u30b9\u30c8\u304c\u8868\u793a\u3055\u308c\u308b\u3088\u3046\u306b\u30b9\u30bf\u30a4\u30eb\u8a2d\u5b9a\u3055\u308c\u307e\u3059\u3002\u30ab\u30a6\u30f3\u30c8\u3068\u30c6\u30ad\u30b9\u30c8\u3092\u5206\u3051\u308b\u7dda\u306f\u3001\u5b9f\u969b\u306b\u306f\u3053\u306e\u30c6\u30ad\u30b9\u30c8\u9818\u57df\u306e\u4e0a\u90e8\u306e\u5883\u754c\u7dda\u3067\u3059\u3002<\/p>\n<pre><code class=\"hljs css\"><span class=\"hljs-selector-tag\">\u30c6\u30ad\u30b9\u30c8\u30a8\u30ea\u30a2<\/span> {\r\n    <span class=\"hljs-selector-tag\">\u5e45<\/span>: 100%;\r\n    <span class=\"hljs-selector-tag\">\u8eab\u9577<\/span>: 100%;\r\n    <span class=\"hljs-selector-tag\">\u30d5\u30a9\u30f3\u30c8\u30b5\u30a4\u30ba<\/span>: 16<span class=\"hljs-selector-tag\">pt<\/span>;\r\n    <span class=\"hljs-selector-tag\">\u30d1\u30c7\u30a3\u30f3\u30b0<\/span>: 1<span class=\"hljs-selector-tag\">\u3067<\/span>;\r\n    <span class=\"hljs-selector-tag\">\u30dc\u30c3\u30af\u30b9\u30b5\u30a4\u30ba<\/span>: <span class=\"hljs-selector-tag\">\u5883\u754c\u30dc\u30c3\u30af\u30b9<\/span>;\r\n    <span class=\"hljs-selector-tag\">\u6982\u8981<\/span>: 0;\r\n    <span class=\"hljs-selector-tag\">\u56fd\u5883<\/span>: <span class=\"hljs-selector-tag\">\u306a\u3057<\/span>;\r\n    <span class=\"hljs-selector-tag\">\u30dc\u30fc\u30c0\u30fc\u30c8\u30c3\u30d7<\/span>: 1<span class=\"hljs-selector-tag\">\u30d4\u30af\u30bb\u30eb<\/span> <span class=\"hljs-selector-tag\">\u56fa\u4f53<\/span> <span class=\"hljs-selector-id\">#999<\/span>;\r\n}<\/code><\/pre>\n<figure><picture><source media=\"(min-width: 1024px)\" data-=\"\" \/><source media=\"(min-width: 768px)\" data-=\"\" \/><source media=\"(min-width: 481px)\" data-=\"\" \/><source media=\"(min-width: 0px)\" data-=\"\" \/><img decoding=\"async\" style=\"display: block; height: auto; max-width: 100%;\" src=\"https:\/\/mastertrend.info\/wp-content\/uploads\/2025\/01\/1736598859_152_Crea-Tu-Primera-Aplicacion-Web-Una-App-de-Notas-Sencilla.png\" alt=\"\u30ab\u30b9\u30bf\u30e0 \u30b9\u30bf\u30a4\u30eb\u306e\u30e1\u30e2\u4f5c\u6210\u30a2\u30d7\u30ea\u3067\u306f\u3001\u4e0a\u90e8\u306b\u96c6\u8a08\u30d0\u30fc\u304c\u8868\u793a\u3055\u308c\u3001\u305d\u306e\u4e0b\u306b\u30d5\u30eb\u30b5\u30a4\u30ba\u306e\u30c6\u30ad\u30b9\u30c8\u9818\u57df\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\" width=\"960\" height=\"569\" title=\"\"> <\/picture><\/figure>\n<h3 id=\"adding-functionality-with-javascript\">JavaScript\u3067\u6a5f\u80fd\u3092\u8ffd\u52a0\u3059\u308b<\/h3>\n<p>\u69cb\u9020\u3068\u30b9\u30bf\u30a4\u30eb\u304c\u6c7a\u307e\u3063\u305f\u3089\u3001\u6a5f\u80fd\u3001\u3064\u307e\u308a\u3053\u306e\u30b7\u30f3\u30d7\u30eb\u306a\u30a2\u30d7\u30ea\u306b\u5b9f\u969b\u306b\u4f55\u304b\u3092\u5b9f\u884c\u3055\u305b\u308b\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3059\u308b\u6e96\u5099\u304c\u6574\u3044\u307e\u3059\u3002 \ud83d\udee0\ufe0f<\/p>\n<p>\u6700\u3082\u5358\u7d14\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u304d\u59cb\u3081\u308b\u524d\u306b\u3001\u305d\u306e\u30b3\u30fc\u30c9\u3067\u4f55\u3092\u5b9f\u884c\u3057\u305f\u3044\u306e\u304b\u3092\u7406\u89e3\u3057\u3066\u304a\u304f\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u4e00\u822c\u7684\u306a\u8981\u4ef6\u306f\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u5165\u529b\u3057\u305f\u30c6\u30ad\u30b9\u30c8\u3092\u4fdd\u5b58\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u518d\u8aad\u307f\u8fbc\u307f\u3057\u307e\u3059\u3002<\/li>\n<li>\u6587\u5b57\u6570\u3068\u5358\u8a9e\u6570\u3092\u66f4\u65b0\u3057\u3066\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306e\u7d71\u8a08\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002 \ud83d\udcca<\/li>\n<\/ul>\n<p>\u3069\u3061\u3089\u306e\u8981\u4ef6\u3082\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5185\u306e\u8981\u7d20\u306e\u66f4\u65b0\u3092\u4f34\u3044\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u306f getElementById \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3053\u308c\u3089\u306e\u30ce\u30fc\u30c9\u3078\u306e\u53c2\u7167\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304b\u3089\u59cb\u307e\u308a\u307e\u3059\u3002<\/p>\n<pre><code class=\"hljs js\"><span class=\"hljs-keyword\">\u5b9a\u6570<\/span> \u5358\u8a9e = <span class=\"hljs-built_in\">\u66f8\u985e<\/span>.getElementById()<span class=\"hljs-string\">\u300c\u8a00\u8449\u300d<\/span>);\r\n<span class=\"hljs-keyword\">\u5b9a\u6570<\/span> \u6587\u5b57\u6570 = <span class=\"hljs-built_in\">\u66f8\u985e<\/span>.getElementById()<span class=\"hljs-string\">\u300c\u6587\u5b57\u300d<\/span>);\r\n<span class=\"hljs-keyword\">\u5b9a\u6570<\/span> \u30c6\u30ad\u30b9\u30c8\u30a8\u30ea\u30a2 = <span class=\"hljs-built_in\">\u66f8\u985e<\/span>.getElementById()<span class=\"hljs-string\">&quot;\u6587\u7ae0&quot;<\/span>);\r\n<\/code><\/pre>\n<p>\u5358\u8a9e\u3001\u6587\u5b57\u3001\u30c6\u30ad\u30b9\u30c8\u306f\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5185\u306e\u305d\u308c\u305e\u308c\u306e\u8981\u7d20\u306e ID \u3067\u3042\u308a\u3001HTML \u30d5\u30a1\u30a4\u30eb\u3067 id \u5c5e\u6027\u3092\u4f7f\u7528\u3057\u3066\u5272\u308a\u5f53\u3066\u3089\u308c\u3066\u3044\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u6b21\u306b\u3001\u30c6\u30ad\u30b9\u30c8\u304c\u5909\u66f4\u3055\u308c\u305f\u3068\u304d\u306b\u30a2\u30d7\u30ea\u304c\u53cd\u5fdc\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre><code class=\"hljs js\">\u30c6\u30ad\u30b9\u30c8\u30a8\u30ea\u30a2.addEventListener()<span class=\"hljs-string\">&quot;\u5165\u529b&quot;<\/span>, <span class=\"hljs-function\"><span class=\"hljs-keyword\">\u95a2\u6570<\/span>(<span class=\"hljs-params\">ev<\/span>) <\/span>{ \u30ed\u30fc\u30ab\u30eb\u30b9\u30c8\u30ec\u30fc\u30b8.setItem(<span class=\"hljs-string\">&quot;\u6587\u7ae0&quot;<\/span>\u3001ev.target.value); update_counts(ev.target.value); });\r\n<\/code><\/pre>\n<p>\u30a4\u30d9\u30f3\u30c8 \u30ea\u30b9\u30ca\u30fc\u306f\u3001\u7279\u5b9a\u306e\u30a4\u30d9\u30f3\u30c8\u304c\u767a\u751f\u3057\u305f\u3068\u304d\u306b JavaScript \u304c\u81ea\u52d5\u7684\u306b\u5b9f\u884c\u3059\u308b\u95a2\u6570\u3067\u3059\u3002\u3053\u306e\u5834\u5408\u3001textarea \u30ce\u30fc\u30c9\u306b\u30ea\u30b9\u30ca\u30fc\u3092\u30a2\u30bf\u30c3\u30c1\u3057\u307e\u3059\u3002\u3053\u306e\u30ea\u30b9\u30ca\u30fc\u306f\u3001\u300cinput\u300d\u30a4\u30d9\u30f3\u30c8\u304c\u767a\u751f\u3057\u305f\u3068\u304d\u306b\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u8ab0\u304b\u304c\u30c6\u30ad\u30b9\u30c8\u30a8\u30ea\u30a2\u3092\u64cd\u4f5c\u3057\u305f\u3068\u304d\u3067\u3059\u3002<\/p>\n<p>\u6b21\u306b\u3001Web Storage API \u3092\u4f7f\u7528\u3057\u3066\u3001ev.target.value \u304b\u3089\u53d6\u5f97\u3055\u308c\u308b\u30c6\u30ad\u30b9\u30c8 \u30a8\u30ea\u30a2\u306e\u73fe\u5728\u306e\u5185\u5bb9\u3092\u4fdd\u5b58\u3057\u307e\u3059\u3002\u3053\u306e\u69cb\u9020\u3067\u306f\u3001ev \u306f\u30ea\u30b9\u30ca\u30fc\u3092\u30c8\u30ea\u30ac\u30fc\u3057\u305f\u30a4\u30d9\u30f3\u30c8\u3092\u8868\u3059\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3001ev.target \u306f\u30a4\u30d9\u30f3\u30c8\u3092\u53d7\u4fe1\u3057\u305f\u30ce\u30fc\u30c9\u3001ev.target.value \u306f\u305d\u306e\u30c6\u30ad\u30b9\u30c8 \u30a8\u30ea\u30a2\u306e\u30c6\u30ad\u30b9\u30c8\u3067\u3059\u3002<\/p>\n<p>setItem \u30e1\u30bd\u30c3\u30c9\u306f\u3001\u30c7\u30fc\u30bf\u306b\u95a2\u9023\u4ed8\u3051\u308b\u30ad\u30fc\u540d\u3068\u4fdd\u5b58\u3059\u308b\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u306e 2 \u3064\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3092\u53d6\u308a\u307e\u3059\u3002<\/p>\n<p>\u6b21\u306b\u3001\u540c\u3058\u30c6\u30ad\u30b9\u30c8\u3092\u6e21\u3057\u3066 update_counts() \u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002\u305d\u306e\u6a5f\u80fd\u306b\u3064\u3044\u3066\u306f\u5f8c\u307b\u3069\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<p>\u30c6\u30ad\u30b9\u30c8\u3092\u4fdd\u5b58\u3057\u305f\u306e\u3067\u3001\u30a2\u30d7\u30ea\u3092\u958b\u3044\u305f\u308a\u518d\u8aad\u307f\u8fbc\u307f\u3057\u305f\u308a\u3059\u308b\u3068\u304d\u306b\u3001\u30c6\u30ad\u30b9\u30c8\u3092\u518d\u5ea6\u8aad\u307f\u8fbc\u3080\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5225\u306e\u30ea\u30b9\u30ca\u30fc\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3053\u308c\u3092\u51e6\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre><code class=\"hljs js\"><span class=\"hljs-built_in\">\u30a6\u30a3\u30f3\u30c9\u30a6<\/span>.addEventListener()<span class=\"hljs-string\">&quot;\u8ca0\u8377&quot;<\/span>, <span class=\"hljs-function\"><span class=\"hljs-keyword\">\u95a2\u6570<\/span>(<span class=\"hljs-params\">ev<\/span>) <\/span>{\r\n    <span class=\"hljs-keyword\">var<\/span> \u30c6\u30ad\u30b9\u30c8 = localStorage.getItem(<span class=\"hljs-string\">&quot;\u6587\u7ae0&quot;<\/span>\uff09;\u30c6\u30ad\u30b9\u30c8\u30a8\u30ea\u30a2.\u5024 = \u30c6\u30ad\u30b9\u30c8; update_counts(\u30c6\u30ad\u30b9\u30c8); });\r\n<\/code><\/pre>\n<p>\u3053\u306e\u30ea\u30b9\u30ca\u30fc\u306f\u3001\u30d6\u30e9\u30a6\u30b6 \u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u6700\u4e0a\u4f4d\u8868\u73fe\u3067\u3042\u308b window \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u767a\u751f\u3059\u308b load \u30a4\u30d9\u30f3\u30c8\u3092\u51e6\u7406\u3057\u307e\u3059\u3002\u30a6\u30a3\u30f3\u30c9\u30a6\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u3068\u3001getItem() \u3092\u547c\u3073\u51fa\u3059\u3068\u3001\u30ed\u30fc\u30ab\u30eb \u30b9\u30c8\u30ec\u30fc\u30b8\u304b\u3089\u4fdd\u5b58\u3055\u308c\u305f\u30c6\u30ad\u30b9\u30c8\u5024\u304c\u8fd4\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u30b3\u30fc\u30c9\u306f\u3001\u30c6\u30ad\u30b9\u30c8\u30a8\u30ea\u30a2\u306e\u5024\u3092\u8aad\u307f\u8fbc\u3093\u3060\u30c6\u30ad\u30b9\u30c8\u306b\u8a2d\u5b9a\u3057\u3001\u4e0a\u8a18\u306e\u30ea\u30b9\u30ca\u30fc\u3068\u540c\u69d8\u306b\u3001\u3053\u306e\u30c6\u30ad\u30b9\u30c8\u3067 update_counts() \u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002<\/p>\n<p>\u6b8b\u308a\u306e\u4f5c\u696d\u306f update_counts() \u95a2\u6570\u3067\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre><code class=\"hljs js\"><span class=\"hljs-function\"><span class=\"hljs-keyword\">\u95a2\u6570<\/span>\u00a0<span class=\"hljs-title\">\u66f4\u65b0\u30ab\u30a6\u30f3\u30c8<\/span>(<span class=\"hljs-params\">\u6587\u7ae0<\/span>) <\/span>{ chars.innerHTML = text.length; words.innerHTML = text.split(<span class=\"hljs-string\">' '<\/span>\uff09\u3002\u9577\u3055; }\r\n<\/code><\/pre>\n<p>\u30c6\u30ad\u30b9\u30c8\u30a8\u30ea\u30a2\u3068\u306f\u7570\u306a\u308a\u3001\u901a\u5e38\u306e\u30c6\u30ad\u30b9\u30c8\u306b\u306f value \u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u306a\u3044\u305f\u3081\u3001\u4ee3\u308f\u308a\u306b innerHTML \u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u6587\u5b57\u5217\u306e\u9577\u3055\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u3001\u6587\u5b57\u6570\u3092\u793a\u3059\u5358\u7d14\u306a\u8aad\u307f\u53d6\u308a\u5c02\u7528\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u3059\u3002<\/p>\n<p>text.split(&#039; &#039;) \u306f\u6587\u5b57\u5217\u3092\u30b9\u30da\u30fc\u30b9\u6587\u5b57\u3067\u5206\u5272\u3057\u3001\u7d50\u679c\u3092\u6587\u5b57\u5217\u306e\u914d\u5217\u3068\u3057\u3066\u8fd4\u3057\u307e\u3059\u3002\u6587\u5b57\u5217\u3068\u540c\u69d8\u306b\u3001\u914d\u5217\u306b\u306f\u914d\u5217\u5185\u306e\u8981\u7d20\u306e\u6570\u3092\u793a\u3059 length \u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u3053\u306e\u30b3\u30fc\u30c9\u3092\u30c6\u30b9\u30c8\u3059\u308b\u3068\u3001\u3044\u304f\u3064\u304b\u306e\u30a8\u30e9\u30fc\u306b\u6c17\u4ed8\u304f\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u5358\u8a9e\u306e\u5468\u56f2\u306b\u30b9\u30da\u30fc\u30b9\u6587\u5b57\u304c\u306a\u3044\u305f\u3081\u3001\u884c\u5185\u306e\u5358\u8a9e\u81ea\u4f53\u306f\u6b63\u3057\u304f\u30ab\u30a6\u30f3\u30c8\u3055\u308c\u307e\u305b\u3093\u3002<\/li>\n<li>\u30c6\u30ad\u30b9\u30c8\u304c\u307e\u3063\u305f\u304f\u306a\u3044\u5834\u5408\u306f\u3001\u5206\u5272\u306e\u4ed5\u7d44\u307f\u306b\u3088\u308a 1 \u3064\u306e\u5358\u8a9e\u304c\u5831\u544a\u3055\u308c\u307e\u3059\u3002<\/li>\n<\/ol>\n<p>\u6700\u521d\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u306b\u306f\u3001\u30b9\u30da\u30fc\u30b9\u306e\u4ee3\u308f\u308a\u306b\u6b63\u898f\u8868\u73fe (\\s \u306f\u300c\u7a7a\u767d\u6587\u5b57\u300d\u3092\u610f\u5473\u3057\u307e\u3059) \u3067\u5206\u5272\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 2 \u756a\u76ee\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u306b\u306f\u3001\u7d50\u679c\u304b\u3089\u7a7a\u306e\u6587\u5b57\u5217\u3092\u9664\u5916\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"hljs js\">    words.innerHTML = text.split(<span class=\"hljs-regexp\">\/\\s\/<\/span>\uff09\u3002\u30d5\u30a3\u30eb\u30bf\u30fc\uff08<span class=\"hljs-function\"><span class=\"hljs-keyword\">\u95a2\u6570<\/span>(<span class=\"hljs-params\">n<\/span>) <\/span>{ <span class=\"hljs-keyword\">\u623b\u308b<\/span> n != <span class=\"hljs-string\">''<\/span>; }\uff09\u3002\u9577\u3055;\r\n<\/code><\/pre>\n<p>\u3053\u306e\u884c\u3092\u5b8c\u5168\u306b\u7406\u89e3\u3067\u304d\u306a\u3044\u5834\u5408\u306f\u3001MDN\u306e\u30da\u30fc\u30b8\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/JavaScript\/Reference\/Global_Objects\/String\/split\" target=\"_blank\" rel=\"noopener noreferrer\">\u30b9\u30d7\u30ea\u30c3\u30c8<\/a> \u305d\u3057\u3066 <a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/JavaScript\/Reference\/Global_Objects\/Array\/filter\" target=\"_blank\" rel=\"noopener noreferrer\">\u30d5\u30a3\u30eb\u30bf\u30fc<\/a>.<\/p>\n<figure><picture><source media=\"(min-width: 1024px)\" data-=\"\" \/><source media=\"(min-width: 768px)\" data-=\"\" \/><source media=\"(min-width: 481px)\" data-=\"\" \/><source media=\"(min-width: 0px)\" data-=\"\" \/><img decoding=\"async\" style=\"display: block; height: auto; max-width: 100%;\" src=\"https:\/\/mastertrend.info\/wp-content\/uploads\/2025\/01\/1736598859_129_Crea-Tu-Primera-Aplicacion-Web-Una-App-de-Notas-Sencilla.png\" alt=\"\u6b63\u78ba\u306a\u6587\u5b57\u6570\u3068\u5358\u8a9e\u6570\u3092\u793a\u3059\u30b5\u30f3\u30d7\u30eb \u30c6\u30ad\u30b9\u30c8\u4ed8\u304d\u306e Web \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3002\" width=\"960\" height=\"569\" title=\"\"> <\/picture><\/figure>\n<hr \/>\n<p>\u308f\u305a\u304b\u6570\u500b\u306e\u30d5\u30a1\u30a4\u30eb\u3067\u3001\u591a\u304f\u306e\u4fbf\u5229\u306a Web \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u69cb\u7bc9\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30b7\u30f3\u30d7\u30eb\u306a\u30e1\u30e2\u30a2\u30d7\u30ea\u3092\u62e1\u5f35\u3057\u3066\u3001\u3055\u3089\u306b\u6a5f\u80fd\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001 <a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/Window\/location\" target=\"_blank\" rel=\"noopener\" data-schema-attribute=\"mentions\">window.location \u30d7\u30ed\u30d1\u30c6\u30a3<\/a> \u73fe\u5728\u306e URL \u3092\u53d6\u5f97\u3057\u3001localStorage.setItem \u306b\u6e21\u3059\u540d\u524d\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u3067\u8907\u6570\u306e\u30e1\u30e2\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002 \ud83d\uddd2\ufe0f\ud83c\udf0d<\/p>","protected":false},"excerpt":{"rendered":"<p>\u6700\u521d\u306e Web \u30a2\u30d7\u30ea\u3092\u4f5c\u6210\u3057\u3001\u5358\u8a9e\u30ab\u30a6\u30f3\u30bf\u30fc\u3092\u4f7f\u7528\u3057\u3066\u30e1\u30e2\u3092\u4fdd\u5b58\u3057\u307e\u3059\u3002\u7c21\u5358\u306b\u3001\u65e9\u304f\u3001\u305d\u3057\u3066\u7121\u6599\u3067\u5b66\u7fd2\u3057\u307e\u3057\u3087\u3046\uff01 \ud83c\udf10\ud83d\udd8b\ufe0f\u2728<\/p>","protected":false},"author":1,"featured_media":49198,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ai_generated_summary":"","iawp_total_views":39,"jnews-multi-image_gallery":[],"jnews_single_post":[],"jnews_primary_category":[],"jnews_social_meta":[],"jnews_review":[],"enable_review":"","type":"","name":"","summary":"","brand":"","sku":"","good":[],"bad":[],"score_override":"","override_value":"","rating":[],"price":[],"jnews_override_counter":[],"footnotes":""},"categories":[1435],"tags":[1445,1558],"class_list":["post-32655","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutoriales","tag-evergreencontent","tag-techtips"],"_links":{"self":[{"href":"https:\/\/mastertrend.info\/ja\/wp-json\/wp\/v2\/posts\/32655","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mastertrend.info\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mastertrend.info\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mastertrend.info\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mastertrend.info\/ja\/wp-json\/wp\/v2\/comments?post=32655"}],"version-history":[{"count":0,"href":"https:\/\/mastertrend.info\/ja\/wp-json\/wp\/v2\/posts\/32655\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mastertrend.info\/ja\/wp-json\/wp\/v2\/media\/49198"}],"wp:attachment":[{"href":"https:\/\/mastertrend.info\/ja\/wp-json\/wp\/v2\/media?parent=32655"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mastertrend.info\/ja\/wp-json\/wp\/v2\/categories?post=32655"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mastertrend.info\/ja\/wp-json\/wp\/v2\/tags?post=32655"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}