{"id":26469,"date":"2024-11-24T16:19:15","date_gmt":"2024-11-24T08:19:15","guid":{"rendered":"https:\/\/fwq.ai\/blog\/26469\/"},"modified":"2024-11-24T16:19:15","modified_gmt":"2024-11-24T08:19:15","slug":"%e5%a6%82%e4%bd%95%e5%88%a4%e6%96%ad-dom-%e5%85%83%e7%b4%a0%e6%98%af%e5%90%a6%e5%8c%85%e5%90%ab%e5%9c%a8%e5%8f%a6%e4%b8%80%e4%b8%aa%e5%85%83%e7%b4%a0%e4%b8%ad%ef%bc%9f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/26469\/","title":{"rendered":"\u5982\u4f55\u5224\u65ad DOM \u5143\u7d20\u662f\u5426\u5305\u542b\u5728\u53e6\u4e00\u4e2a\u5143\u7d20\u4e2d\uff1f"},"content":{"rendered":"

\"\u5982\u4f55\u5224\u65ad<\/p>\n

\u5224\u65ad\u5143\u7d20\u662f\u5426\u5305\u542b\u5728\u53e6\u4e00\u4e2a\u5143\u7d20\u4e2d<\/strong><\/p>\n

\u672c\u6587\u5c06\u63a2\u8ba8\u5982\u4f55\u5224\u65ad\u4e24\u4e2a\u5e73\u884c\u7684 DOM \u5143\u7d20\u662f\u5426\u5305\u542b\u3002<\/p>\n

\u95ee\u9898\u63cf\u8ff0<\/strong><\/p>\n

\u6211\u4eec\u6709\u4e00\u4e2a HTML \u9875\u9762\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e2a\u9ec4\u8272\u6807\u8bb0\u5143\u7d20\uff08”.mark”\uff09\u548c\u4e09\u4e2a\u9879\u76ee\u5143\u7d20\uff08”item1″\u3001”item2″\u3001”item3″\uff09\u3002\u6211\u4eec\u9700\u8981\u5224\u65ad\u6bcf\u4e2a\u9879\u76ee\u5143\u7d20\u662f\u5426\u5305\u542b\u5728\u9ec4\u8272\u6807\u8bb0\u4e2d\u3002<\/p>\n

\u89e3\u51b3\u65b9\u6848<\/strong><\/p>\n

\u53ef\u4ee5\u4f7f\u7528 JavaScript \u4e2d\u7684 getBoundingClientRect() \u65b9\u6cd5\u6765\u83b7\u53d6\u5143\u7d20\u76f8\u5bf9\u4e8e\u5176\u6700\u8fd1\u7684\u53ef\u6eda\u52a8\u7956\u5148\u7684\u8fb9\u754c\u77e9\u5f62\u3002\u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u6bd4\u8f83\u6bcf\u4e2a\u9879\u76ee\u5143\u7d20\u7684\u8fb9\u754c\u77e9\u5f62\u4e0e\u9ec4\u8272\u6807\u8bb0\u7684\u8fb9\u754c\u77e9\u5f62\uff0c\u4ee5\u786e\u5b9a\u662f\u5426\u5305\u542b\u3002<\/p>\n

\u4ee3\u7801\u5b9e\u73b0<\/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}\n\nconst 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
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u8f93\u51fa\u7ed3\u679c\u5982\u4e0b\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\uff0c”item1″ \u548c “item2” \u5305\u542b\u5728\u9ec4\u8272\u6807\u8bb0\u4e2d\uff0c\u800c “item3” \u5219\u4e0d\u5305\u542b\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u5224\u65ad DOM \u5143\u7d20\u662f\u5426\u5305\u542b\u5728\u53e6\u4e00\u4e2a\u5143\u7d20\u4e2d\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":"
\u5224\u65ad\u5143\u7d20\u662f\u5426\u5305\u542b\u5728\u53e6\u4e00\u4e2a\u5143\u7d20\u4e2d \u672c\u6587\u5c06\u63a2\u8ba8\u5982\u4f55\u5224\u65ad\u4e24\u4e2a\u5e73\u884c\u7684 DOM \u5143\u7d20\u662f\u5426\u5305\u542b\u3002 \u95ee\u9898\u63cf\u8ff0 \u6211\u4eec\u6709\u4e00\u4e2a HTML \u9875\u9762\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e2a\u9ec4\u8272\u6807\u8bb0\u5143\u7d20\uff08”.mark”\uff09\u548c\u4e09\u4e2a\u9879\u76ee\u5143\u7d20\uff08”item1″\u3001”item2″\u3001”item3″\uff09\u3002\u6211\u4eec\u9700\u8981\u5224\u65ad\u6bcf\u4e2a\u9879\u76ee\u5143\u7d20\u662f\u5426\u5305\u542b\u5728\u9ec4\u8272\u6807\u8bb0\u4e2d\u3002 \u89e3\u51b3\u65b9\u6848 \u53ef\u4ee5\u4f7f\u7528 JavaScript \u4e2d\u7684 getBoundingClientRect() \u65b9\u6cd5\u6765\u83b7\u53d6\u5143\u7d20\u76f8\u5bf9\u4e8e\u5176\u6700\u8fd1\u7684\u53ef\u6eda\u52a8\u7956\u5148\u7684\u8fb9\u754c\u77e9\u5f62\u3002\u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u6bd4\u8f83\u6bcf\u4e2a\u9879\u76ee\u5143\u7d20\u7684\u8fb9\u754c\u77e9\u5f62\u4e0e\u9ec4\u8272\u6807\u8bb0\u7684\u8fb9\u754c\u77e9\u5f62\uff0c\u4ee5\u786e\u5b9a\u662f\u5426\u5305\u542b\u3002 \u4ee3\u7801\u5b9e\u73b0 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 ); } const mark = document.querySelector(“.mark”); const item1 = document.querySelector(“.item1”); const […]<\/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-26469","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/26469","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=26469"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/26469\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=26469"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=26469"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=26469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}