{"id":11803,"date":"2023-11-28T22:34:24","date_gmt":"2023-11-28T14:34:24","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=11803"},"modified":"2023-11-30T18:34:22","modified_gmt":"2023-11-30T10:34:22","slug":"javascript-zhong-shen-me-shi-shi-jian-chuan-bo","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/javascript-zhong-shen-me-shi-shi-jian-chuan-bo\/","title":{"rendered":"JavaScript \u4e2d\u4ec0\u4e48\u662f\u4e8b\u4ef6\u4f20\u64ad\uff1f"},"content":{"rendered":"<p>\u5728 JavaScript \u4e2d\uff0c\u4e8b\u4ef6\u4f20\u64ad\uff08Event Propagation\uff09\u6307\u7684\u662f\u5f53 DOM \u5143\u7d20\u4e0a\u89e6\u53d1\u4e8b\u4ef6\u65f6\uff0c\u8be5\u4e8b\u4ef6\u5982\u4f55\u5728 DOM \u6811\u4e2d\u4f20\u64ad\u6216\u4f20\u9012\u7684\u8fc7\u7a0b\u3002<\/p>\n<p>\u4e8b\u4ef6\u4f20\u64ad\u5206\u4e3a\u4e09\u4e2a\u9636\u6bb5\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u4e8b\u4ef6\u6355\u83b7\u9636\u6bb5\uff08Capture Phase\uff09\uff1a<\/strong> \u4e8b\u4ef6\u4ece\u9876\u5c42\u5411\u4e0b\u4f20\u64ad\uff0c\u4ece\u6587\u6863\u6839\u8282\u70b9\u5f00\u59cb\u9010\u7ea7\u5411\u4e0b\uff0c\u76f4\u5230\u89e6\u53d1\u4e8b\u4ef6\u7684\u76ee\u6807\u5143\u7d20\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u76ee\u6807\u9636\u6bb5\uff08Target Phase\uff09\uff1a<\/strong> \u4e8b\u4ef6\u8fbe\u5230\u76ee\u6807\u5143\u7d20\u540e\u5728\u76ee\u6807\u5143\u7d20\u4e0a\u89e6\u53d1\uff0c\u5373\u4e8b\u4ef6\u5230\u8fbe\u76ee\u6807\u5143\u7d20\u672c\u8eab\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u4e8b\u4ef6\u5192\u6ce1\u9636\u6bb5\uff08Bubble Phase\uff09\uff1a<\/strong> \u4e8b\u4ef6\u4ece\u76ee\u6807\u5143\u7d20\u5f00\u59cb\u5411\u4e0a\u5192\u6ce1\uff0c\u9010\u7ea7\u5411\u4e0a\u4f20\u64ad\u5230\u6587\u6863\u6839\u8282\u70b9\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u8fd9\u4e09\u4e2a\u9636\u6bb5\u6784\u6210\u4e86\u6240\u8c13\u7684\u4e8b\u4ef6\u6d41\uff08Event Flow\uff09\u3002\u5728\u4e8b\u4ef6\u4f20\u64ad\u8fc7\u7a0b\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u5728 DOM \u4e0a\u6ce8\u518c\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u6765\u6355\u83b7\uff08Capture\uff09\u6216\u5904\u7406\u4e8b\u4ef6\uff0c\u4e8b\u4ef6\u4f1a\u5728\u5404\u4e2a\u9636\u6bb5\u89e6\u53d1\u6ce8\u518c\u7684\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\u3002<\/p>\n<h3><a id=\"%E4%BA%8B%E4%BB%B6%E4%BC%A0%E6%92%AD%E7%9A%84%E6%96%B9%E6%B3%95%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>\u4e8b\u4ef6\u4f20\u64ad\u7684\u65b9\u6cd5\uff1a<\/h3>\n<ul>\n<li><code>addEventListener()<\/code> \u65b9\u6cd5\u5141\u8bb8\u4f7f\u7528\u7b2c\u4e09\u4e2a\u53c2\u6570\u6765\u8bbe\u7f6e\u662f\u5426\u5728\u6355\u83b7\u9636\u6bb5\u5904\u7406\u4e8b\u4ef6\uff08<code>useCapture<\/code> \u53c2\u6570\uff09\uff0c\u9ed8\u8ba4\u4e3a <code>false<\/code>\uff0c\u5373\u5728\u5192\u6ce1\u9636\u6bb5\u5904\u7406\u4e8b\u4ef6\u3002<\/li>\n<li><code>event.stopPropagation()<\/code> \u65b9\u6cd5\u7528\u4e8e\u963b\u6b62\u4e8b\u4ef6\u5728 DOM \u6811\u4e2d\u7684\u4f20\u64ad\uff0c\u5373\u505c\u6b62\u4e8b\u4ef6\u7684\u8fdb\u4e00\u6b65\u4f20\u64ad\u3002<\/li>\n<li><code>event.stopImmediatePropagation()<\/code> \u65b9\u6cd5\u7528\u4e8e\u963b\u6b62\u4e8b\u4ef6\u7684\u4f20\u64ad\uff0c\u5e76\u963b\u6b62\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u5728\u540c\u4e00\u5143\u7d20\u4e0a\u7684\u5176\u4ed6\u6ce8\u518c\u4e8b\u4ef6\u88ab\u8c03\u7528\u3002<\/li>\n<\/ul>\n<p>\u7406\u89e3\u4e8b\u4ef6\u4f20\u64ad\u6709\u52a9\u4e8e\u66f4\u597d\u5730\u63a7\u5236\u4e8b\u4ef6\u5904\u7406\u7684\u6d41\u7a0b\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u5728\u6355\u83b7\u6216\u5192\u6ce1\u9636\u6bb5\u5904\u7406\u4e8b\u4ef6\uff0c\u5e76\u4e14\u53ef\u4ee5\u963b\u6b62\u4e8b\u4ef6\u7684\u4f20\u64ad\u4ee5\u63a7\u5236\u4e8b\u4ef6\u5904\u7406\u7684\u8303\u56f4\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 JavaScript \u4e2d\uff0c\u4e8b\u4ef6\u4f20\u64ad\uff08Event Propagation\uff09\u6307\u7684\u662f\u5f53 DOM \u5143\u7d20\u4e0a\u89e6\u53d1\u4e8b\u4ef6\u65f6 [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[115],"tags":[],"class_list":["post-11803","post","type-post","status-publish","format-standard","hentry","category-javascript"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11803","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=11803"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11803\/revisions"}],"predecessor-version":[{"id":13638,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11803\/revisions\/13638"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=11803"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=11803"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=11803"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}