JavaScript \u3067\u306f onclick \u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u95a2\u6570\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4ee3\u5165\u3059\u308b\u3053\u3068\u3067\u3001\u30a4\u30d9\u30f3\u30c8\u3092\u767b\u9332\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3042\u308b HTML \u8981\u7d20\u304c\u30af\u30ea\u30c3\u30af\u3055\u308c\u305f\u3089\u6307\u5b9a\u306e JavaScript \u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\u3044\u3063\u305f\u52d5\u4f5c\u306f\u3082\u306f\u3084\u5f53\u305f\u308a\u524d\u3068\u306a\u308a\u307e\u3057\u305f\u304c\u3001\u81ea\u7136\u306a\u52d5\u4f5c\u3092\u5b9f\u73fe\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u8003\u616e\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
<\/p>\n
\u4f8b\u3048\u3070\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306b div \u8981\u7d20\u304c div \u8981\u7d20\u3092\u5185\u5305\u3057\u3066\u304a\u308a\u3001\u5916\u5074\u306e div \u8981\u7d20\u306b\u30a4\u30d9\u30f3\u30c8\u3092\u767b\u9332\u3057\u305f\u5834\u5408\u3067\u3059\u3002\u4e0b\u8a18\u3067\u306f\u308f\u304b\u308a\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u306b click \u30a4\u30d9\u30f3\u30c8\u3092\u4f7f\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
<html>\n <head>\n <meta charset=\"utf-8\" \/>\n <style>\n #wrapper{\n width: 250px;\n height: 250px;\n background: #cccccc;\n }\n #contents{\n width: 200px;\n height: 200px;\n background: #eeeeee;\n }\n <\/style>\n <script>\n window.onload = function(){\n document.getElementById('wrapper').onclick = function(){\n alert('\u5916\u5074\u306e\u8981\u7d20\u304c\u30af\u30ea\u30c3\u30af\u3055\u308c\u307e\u3057\u305f\u3002');\n }\n }\n <\/script>\n <\/head>\n <body>\n <div id=\"wrapper\">\n \u5916\u5074\u306e\u8981\u7d20\u3067\u3059\u3002\n <div id=\"contents\">\n \u5185\u5074\u306e\u8981\u7d20\u3067\u3059\u3002\n <\/div>\n <\/div>\n <\/body>\n<\/html>\n<\/code><\/pre>\n\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u306e\u72b6\u614b\u3067\u306f\u3001\u300c\u5185\u5074\u306e\u8981\u7d20\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u305f\u3068\u304d\u306b\u300c\u5916\u5074\u306e\u8981\u7d20\u304c\u30af\u30ea\u30c3\u30af\u3055\u308c\u307e\u3057\u305f\u3002\u300d\u3068\u30a2\u30e9\u30fc\u30c8\u304c\u8868\u793a\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u591a\u304f\u306e\u5834\u5408\u3001\u60f3\u5b9a\u3057\u3066\u3044\u308b\u6319\u52d5\u3068\u306f\u7570\u306a\u3063\u3066\u3044\u308b\u3068\u601d\u3044\u307e\u3059\u3002\u5185\u5074\u306e\u8981\u7d20\u304c\u30af\u30ea\u30c3\u30af\u3055\u308c\u305f\u3068\u304d\u306f\u30a2\u30e9\u30fc\u30c8\u3092\u8868\u793a\u3057\u305f\u304f\u306a\u3044\u306f\u305a\u3067\u3059\u3002\u3053\u308c\u306f click \u30a4\u30d9\u30f3\u30c8\u306b\u9650\u3063\u305f\u3053\u3068\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001JavaScript \u306b\u306f\u300c\u30a4\u30d9\u30f3\u30c8\u306e\u30d0\u30d6\u30ea\u30f3\u30b0\u300d\u3068\u3044\u3046\u6319\u52d5\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u30d0\u30d6\u30ea\u30f3\u30b0\u306f\u5358\u8a9e\u304b\u3089\u60f3\u50cf\u3067\u304d\u308b\u3068\u304a\u308a\u3001\u6c34\u4e2d\u306e\u6ce1\u304c\u4e0a\u3078\u5411\u304b\u3046\u304b\u306e\u3088\u3046\u306b\u3001\u30a4\u30d9\u30f3\u30c8\u304c\u89aa\u8981\u7d20\u3078\u3068\u4f1d\u308f\u3063\u3066\u3044\u304f\u6319\u52d5\u306e\u3053\u3068\u3092\u6307\u3057\u307e\u3059\u3002\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u306e\u4f8b\u3067\u306f\u3001id contents<\/code> \u304c\u30af\u30ea\u30c3\u30af\u3055\u308c\u308b\u3068\u3001\u305d\u306e\u89aa\u8981\u7d20\u3067\u3042\u308bid wrapper<\/code> \u307e\u3067\u30af\u30ea\u30c3\u30af\u3055\u308c\u305f\u3053\u3068\u304c\u4f1d\u308f\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001id contents<\/code> \u3092\u30af\u30ea\u30c3\u30af\u3057\u305f\u306f\u305a\u306a\u306e\u306b\u3001id wrapper<\/code> \u306b\u767b\u9332\u3057\u305f\u30a4\u30d9\u30f3\u30c8\u304c\u52d5\u3044\u3066\u3057\u307e\u3063\u305f\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n\u305d\u3053\u3067\u3001\u89aa\u8981\u7d20\u3078\u30a4\u30d9\u30f3\u30c8\u304c\u4f1d\u308f\u308b\u300c\u30d0\u30d6\u30ea\u30f3\u30b0\u300d\u3092\u9632\u3050\u65b9\u6cd5\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30d0\u30d6\u30ea\u30f3\u30b0\u3092\u9632\u3050\u306b\u306f stopPropagation<\/code> \u30e1\u30bd\u30c3\u30c9\u3092\u5229\u7528\u3057\u307e\u3059\u3002<\/p>\n<html>\n <head>\n <meta charset=\"utf-8\" \/>\n <style>\n #wrapper{\n width: 250px;\n height: 250px;\n background: #cccccc;\n }\n #contents{\n width: 200px;\n height: 200px;\n background: #eeeeee;\n }\n <\/style>\n <script>\n window.onload = function(){\n document.getElementById('wrapper').onclick = function(){\n alert('\u5916\u5074\u306e\u8981\u7d20\u304c\u30af\u30ea\u30c3\u30af\u3055\u308c\u307e\u3057\u305f\u3002');\n }\n document.getElementById('contents').onclick = function(e){\n e.stopPropagation();\n }\n }\n <\/script>\n <\/head>\n <body>\n <div id=\"wrapper\">\n \u5916\u5074\u306e\u8981\u7d20\u3067\u3059\u3002\n <div id=\"contents\">\n \u5185\u5074\u306e\u8981\u7d20\u3067\u3059\u3002\n <\/div>\n <\/div>\n <\/body>\n<\/html>\n<\/code><\/pre>\n\u30d0\u30d6\u30ea\u30f3\u30b0\u3092\u6b62\u3081\u308b\u30b3\u30fc\u30c9\u306f21\u884c\u76ee\uff5e23\u884c\u76ee\u306b\u8ffd\u52a0\u3055\u308c\u3066\u3044\u307e\u3059\u3002id contents<\/code> \u306e HTML \u8981\u7d20\u304c\u30af\u30ea\u30c3\u30af\u3055\u308c\u305f\u3089\u3001\u30a4\u30d9\u30f3\u30c8\u30aa\u30d6\u30b8\u30a7\u30af\u30c8 e \u306e stopPropagation<\/code> \u30e1\u30bd\u30c3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u89aa\u8981\u7d20\u3078\u30a4\u30d9\u30f3\u30c8\u304c\u4f1d\u308f\u3089\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\u30d0\u30d6\u30ea\u30f3\u30b0\u306b\u3064\u3044\u3066\u306e\u8a73\u7d30\u306f\u4e0b\u8a18\u304c\u53c2\u8003\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n