{"id":2912,"date":"2024-11-10T14:47:07","date_gmt":"2024-11-10T06:47:07","guid":{"rendered":"https:\/\/fwq.ai\/blog\/2912\/"},"modified":"2024-11-10T14:47:07","modified_gmt":"2024-11-10T06:47:07","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-javascript-%e7%9a%84-dom-%e7%9f%a9%e5%bd%a2-api-%e5%88%a4%e6%96%ad%e4%b8%80%e4%b8%aa%e5%85%83%e7%b4%a0%e6%98%af%e5%90%a6%e8%a2%ab%e5%8f%a6%e4%b8%80%e4%b8%aa","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/2912\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 JavaScript \u7684 DOM \u77e9\u5f62 API \u5224\u65ad\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u88ab\u53e6\u4e00\u4e2a\u5143\u7d20\u5305\u542b\uff1f"},"content":{"rendered":"

\"\u5982\u4f55\u4f7f\u7528<\/p>\n

\u5e73\u884cdom\u4e4b\u95f4\u7684\u5305\u542b\u5224\u65ad<\/strong><\/p>\n

\u5728\u7ed9\u5b9a\u7684HTML\u7ed3\u6784\u4e2d\uff0c\u9700\u8981\u5224\u65ad \u9ec4\u8272\u80cc\u666f\u7684DOM\uff08mark\uff09 \u662f\u5426\u5305\u542b\u4e86 item1\u3001item2 \u548c item3 \u8fd9\u4e09\u4e2aDOM\u5143\u7d20\u3002<\/p>\n

\u53ef\u4ee5\u4f7f\u7528 JavaScript \u4e2d\u7684 DOM\u77e9\u5f62API\uff08getElementClientRect() \uff09\u6765\u83b7\u53d6\u5143\u7d20\u7684\u8fb9\u754c\u6846\u4fe1\u606f\uff0c\u5224\u65ad\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u5305\u542b\u53e6\u4e00\u4e2a\u5143\u7d20\uff0c\u9700\u8981\u68c0\u67e5\u5176\u8fb9\u754c\u6846\u662f\u5426\u6ee1\u8db3\u4e00\u5b9a\u6761\u4ef6\u3002<\/p>\n

\u5224\u65ad\u903b\u8f91\u5982\u4e0b\uff1a<\/strong><\/p>\n

function isContained(element, container) {\n  const containerRect = container.getBoundingClientRect();\n  const elementRect = element.getBoundingClientRect();\n\n  return (\n    elementRect.top >= containerRect.top &&\n    elementRect.left >= containerRect.left &&\n    elementRect.bottom <= containerRect.bottom &&\n    elementRect.right <= containerRect.right\n  );\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8be5\u51fd\u6570\u63a5\u6536\u4e24\u4e2a\u53c2\u6570\uff0c\u4e00\u4e2a\u662f\u88ab\u5224\u65ad\u5143\u7d20\uff0c\u4e00\u4e2a\u662f\u88ab\u5305\u542b\u5143\u7d20\u3002\u51fd\u6570\u901a\u8fc7\u83b7\u53d6\u5143\u7d20\u7684\u8fb9\u754c\u6846\uff0c\u5e76\u6bd4\u8f83\u5b83\u4eec\u7684\u4f4d\u7f6e\u548c\u5927\u5c0f\uff0c\u6765\u5224\u65ad\u662f\u5426\u5305\u542b\u3002<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
\u5177\u4f53\u5224\u65ad\u793a\u4f8b\uff1a<\/strong><\/p>\n
const mark = document.querySelector(\".mark\");\nconst item1 = document.querySelector(\".item1\");\nconst item2 = document.querySelector(\".item2\");\nconst item3 = document.querySelector(\".item3\");\n\nconsole.log(\"Item 1 is contained:\", isContained(item1, mark));\nconsole.log(\"Item 2 is contained:\", isContained(item2, mark));\nconsole.log(\"Item 3 is contained:\", isContained(item3, mark));<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8fd0\u884c\u8fd9\u6bb5\u4ee3\u7801\uff0c\u5c06\u5728\u63a7\u5236\u53f0\u4e2d\u6253\u5370\u4ee5\u4e0b\u8f93\u51fa\uff1a<\/p>\n
Item 1 is contained: true\nItem 2 is contained: true\nItem 3 is contained: false<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u7531\u6b64\u53ef\u89c1\uff0citem1 \u548c item2 \u88abmark\u5305\u542b\uff0c\u800citem3\u5219\u4e0d\u88ab\u5305\u542b\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528 JavaScript \u7684 DOM \u77e9\u5f62 API \u5224\u65ad\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u88ab\u53e6\u4e00\u4e2a\u5143\u7d20\u5305\u542b\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5e73\u884cdom\u4e4b\u95f4\u7684\u5305\u542b\u5224\u65ad \u5728\u7ed9\u5b9a\u7684HTML\u7ed3\u6784\u4e2d\uff0c\u9700\u8981\u5224\u65ad \u9ec4\u8272\u80cc\u666f\u7684DOM\uff08mark\uff09 \u662f\u5426\u5305\u542b\u4e86 item1\u3001item2 \u548c item3 \u8fd9\u4e09\u4e2aDOM\u5143\u7d20\u3002 \u53ef\u4ee5\u4f7f\u7528 JavaScript \u4e2d\u7684 DOM\u77e9\u5f62API\uff08getElementClientRect() \uff09\u6765\u83b7\u53d6\u5143\u7d20\u7684\u8fb9\u754c\u6846\u4fe1\u606f\uff0c\u5224\u65ad\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u5305\u542b\u53e6\u4e00\u4e2a\u5143\u7d20\uff0c\u9700\u8981\u68c0\u67e5\u5176\u8fb9\u754c\u6846\u662f\u5426\u6ee1\u8db3\u4e00\u5b9a\u6761\u4ef6\u3002 \u5224\u65ad\u903b\u8f91\u5982\u4e0b\uff1a function isContained(element, container) { const containerRect = container.getBoundingClientRect(); const elementRect = element.getBoundingClientRect(); return ( elementRect.top >= containerRect.top && elementRect.left >= containerRect.left && elementRect.bottom <= containerRect.bottom && elementRect.right <= containerRect.right ); } \u767b\u5f55\u540e\u590d\u5236 \u8be5\u51fd\u6570\u63a5\u6536\u4e24\u4e2a\u53c2\u6570\uff0c\u4e00\u4e2a\u662f\u88ab\u5224\u65ad\u5143\u7d20\uff0c\u4e00\u4e2a\u662f\u88ab\u5305\u542b\u5143\u7d20\u3002\u51fd\u6570\u901a\u8fc7\u83b7\u53d6\u5143\u7d20\u7684\u8fb9\u754c\u6846\uff0c\u5e76\u6bd4\u8f83\u5b83\u4eec\u7684\u4f4d\u7f6e\u548c\u5927\u5c0f\uff0c\u6765\u5224\u65ad\u662f\u5426\u5305\u542b\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u5177\u4f53\u5224\u65ad\u793a\u4f8b\uff1a const mark = document.querySelector(“.mark”); const item1 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-2912","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/2912","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=2912"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/2912\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=2912"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=2912"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=2912"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}