{"id":53633,"date":"2024-12-03T12:28:17","date_gmt":"2024-12-03T04:28:17","guid":{"rendered":"https:\/\/fwq.ai\/blog\/53633\/"},"modified":"2024-12-03T12:28:17","modified_gmt":"2024-12-03T04:28:17","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8intersectionobserver-api%e5%ae%9e%e7%8e%b0%e5%b7%a6%e5%8f%b3%e4%b8%a4%e4%be%a7%e5%b9%bf%e5%91%8a%e6%a0%b9%e6%8d%ae%e9%a1%b5%e9%9d%a2%e6%bb%9a%e5%8a%a8%e8%87%aa","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/53633\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528IntersectionObserver API\u5b9e\u73b0\u5de6\u53f3\u4e24\u4fa7\u5e7f\u544a\u6839\u636e\u9875\u9762\u6eda\u52a8\u81ea\u52a8\u9690\u85cf\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

\u5982\u4f55\u4f7f\u7528IntersectionObserver API\u5b9e\u73b0\u5de6\u53f3\u4e24\u4fa7\u5e7f\u544a\u6839\u636e\u9875\u9762\u6eda\u52a8\u81ea\u52a8\u9690\u85cf\uff1f <\/h1>\n

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\"\u5982\u4f55\u4f7f\u7528IntersectionObserver<\/p>\n

\u5728\u7f51\u7ad9\u6784\u5efa\u4e2d\uff0c\u5de6\u53f3\u4e24\u4fa7\u56fa\u5b9a\u5e7f\u544a\u4e00\u76f4\u662f\u5e38\u89c1\u7684\u5e03\u5c40\uff0c\u4f46\u5b83\u4f1a\u4e00\u76f4\u5360\u7528\u5c4f\u5e55\uff0c\u5b58\u5728\u4e0d\u53cb\u597d\u4f53\u9a8c\u3002\u5982\u4eca\uff0c\u968f\u7740\u524d\u7aef\u6280\u672f\u7684\u4e0d\u65ad\u9769\u65b0\uff0c\u6d8c\u73b0\u4e86\u4e00\u79cd\u65b0\u578b\u5e03\u5c40\uff0c\u5b9e\u73b0\u4e86\u5de6\u53f3\u4e24\u4fa7\u56fa\u5b9a\u5e7f\u544a\u6839\u636e\u9875\u9762\u6eda\u52a8\u81ea\u52a8\u9690\u85cf\u7684\u529f\u80fd\u3002<\/p>\n

\u5b9e\u73b0\u8fd9\u4e00\u6548\u679c\u5176\u5b9e\u5f88\u7b80\u5355\uff0c\u4e0d\u9700\u8981\u77e5\u9053\u5143\u7d20\u7684\u9ad8\u5ea6\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u68c0\u6d4b\u5143\u7d20\u662f\u5426\u51fa\u73b0\u5728\u5c4f\u5e55\u4e0a\u6216\u4ece\u5c4f\u5e55\u4e0a\u6d88\u5931\u6765\u63a7\u5236\u663e\u793a\u9690\u85cf\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u5b9e\u73b0\u4ee3\u7801\uff1a<\/p>\n

<!DOCTYPE html>\n<html lang=\"en\">\n\n<head>\n  <meta charset=\"UTF-8\">\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge\">\n  <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n  <title>Document<\/title>\n  <style>\n    h1 {\n      text-align: center;\n    }\n\n    .text {\n      margin-left: 100px;\n    }\n\n    .left {\n      position: sticky;\n      left: 0;\n      top: 10px;\n    }\n\n    .end {\n      margin-bottom: 100px;\n    }\n  <\/style>\n<\/head>\n\n<body>\n  <h1>\u6807\u9898<\/h1>\n  <div class=\"left\">\n    \u6eda\u52a8<br>\n    \u5230\u5e95<br>\n    \u6211\u5c31<br>\n    \u4e0d\u89c1\u4e86\n  <\/div>\n  <div class=\"text\">\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n    \u6d4b\u8bd5<br>\n  <\/div>\n  <div class=\"end\">\n    \u5f53\u4f60\u770b\u5230\u6211\uff0c<br>\n    \u5de6\u8fb9\u7684\u6587\u5b57\u5c31\u6d88\u5931\n  <\/div>\n  <script>\n    (function () {\n\n      \/** \n       * \u5e95\u90e8\u7684\u6587\u5b57\n       * @type {HTMLDivElement}\n       *\/\n      const endEl = document.querySelector('.end');\n\n      \/** \n       * \u5de6\u8fb9\u7684\u6587\u5b57\n       * @type {HTMLDivElement}\n       *\/\n      const leftEl = document.querySelector('.left');\n\n      \/\/ \u76d1\u63a7end\u5143\u7d20\u662f\u5426\u51fa\u73b0\u5728\u5c4f\u5e55\u4e0a\n      const obs = new IntersectionObserver((entries, observer) => {\n        \/\/ \u5e95\u90e8\u7684\u6587\u5b57\u662f\u5426\u5df2\u51fa\u73b0\n        if (entries[0].isIntersecting) {\n          leftEl.style.display = 'none';\n        } else {\n          leftEl.style.display = '';\n        }\n      }, {\n        rootMargin: '0px',\n        threshold: 0.1,\n      });\n\n      \/\/ \u89c2\u6d4b\u5e95\u90e8\u7684\u6587\u5b57\n      obs.observe(endEl);\n    })();\n  <\/script>\n<\/body>\n\n<\/html><\/pre>\n
\u901a\u8fc7\u5229\u7528IntersectionObserver API\uff0c\u53ef\u4ee5\u68c0\u6d4b\u5143\u7d20\u662f\u5426\u51fa\u73b0\u5728\u5c4f\u5e55\u4e0a\uff0c\u8fdb\u800c\u63a7\u5236\u5de6\u680f\u7684\u663e\u793a\u9690\u85cf\u3002\u8fd9\u79cd\u65b9\u5f0f\u4e0d\u9700\u8981\u77e5\u9053\u5143\u7d20\u7684\u9ad8\u5ea6\uff0c\u4fbf\u53ef\u5b9e\u73b0\u7075\u6d3b\u7684\u4fa7\u8fb9\u680f\u9690\u85cf\u6548\u679c\u3002<\/p>\n
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\n
<\/dt>\n
\n   Win11\u684c\u9762\u56fe\u6807\u600e\u4e48\u8bbe\u7f6e\u51fa\u6765 Win11\u6211\u7684\u7535\u8111\u4e0d\u89c1\u4e86\u600e\u4e48\u529e\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
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