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\u5728\u5904\u7406DOM\u64cd\u4f5c\u7684\u517c\u5bb9\u6027\u65f6\uff0c\u5f00\u53d1\u8005\u9700\u8981\u5173\u6ce8\u51e0\u4e2a\u65b9\u9762\u3002\u9996\u5148\uff0c\u5143\u7d20\u9009\u62e9\u7684\u65b9\u6cd5\u5728\u4e0d\u540c\u6d4f\u89c8\u5668\u4e2d\u53ef\u80fd\u5b58\u5728\u5dee\u5f02\u3002\u4f8b\u5982\uff0cdocument.getElementById<\/code>\u548cdocument.querySelector<\/code>\u5728\u6240\u6709\u73b0\u4ee3\u6d4f\u89c8\u5668\u4e2d\u90fd\u5f97\u5230\u4e86\u652f\u6301\uff0c\u4f46\u5728\u65e7\u7248\u672c\u7684IE\u6d4f\u89c8\u5668\u4e2d\uff0cdocument.querySelector<\/code>\u53ef\u80fd\u65e0\u6cd5\u4f7f\u7528\u3002\u56e0\u6b64\uff0c\u5f00\u53d1\u65f6\u9700\u8003\u8651\u56de\u9000\u65b9\u6848\uff0c\u5982\u4f7f\u7528document.getElementsByTagName<\/code>\u6216document.getElementsByClassName<\/code>\u4f5c\u4e3a\u66ff\u4ee3\u3002<\/p>\n<\/p>\n

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\u4e09\u3001AJAX\u8bf7\u6c42\u7684\u517c\u5bb9\u5904\u7406<\/h3>\n<\/p>\n

AJAX\u662f\u73b0\u4ee3Web\u5e94\u7528\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\uff0c\u5b83\u5141\u8bb8\u5728\u4e0d\u91cd\u65b0\u52a0\u8f7d\u6574\u4e2a\u9875\u9762\u7684\u60c5\u51b5\u4e0b\u4e0e\u670d\u52a1\u5668\u8fdb\u884c\u6570\u636e\u4ea4\u6362\u3002\u5728\u5904\u7406AJAX\u517c\u5bb9\u6027\u65f6\uff0c\u4e3b\u8981\u7684\u95ee\u9898\u5728\u4e8eXMLHttpRequest<\/code>\u5bf9\u8c61\u3002\u5728\u8001\u7248\u672c\u7684IE\u4e2d\uff0cXMLHttpRequest<\/code>\u662f\u901a\u8fc7ActiveX\u5bf9\u8c61\u5b9e\u73b0\u7684\uff0c\u56e0\u6b64\u5728\u4f7f\u7528\u524d\u9700\u8981\u5224\u65ad\u5e76\u517c\u5bb9\u8fd9\u79cd\u60c5\u51b5\u3002<\/p>\n<\/p>\n

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\u968f\u7740ECMAScript\u6807\u51c6\u7684\u4e0d\u65ad\u53d1\u5c55\uff0cJavaScript\u65b0\u589e\u4e86\u5f88\u591a\u6709\u7528\u7684\u7279\u6027\uff0c\u5982\u7bad\u5934\u51fd\u6570\u3001\u6a21\u677f\u5b57\u7b26\u4e32\u3001Promise\u7b49\u3002\u8fd9\u4e9b\u65b0\u7279\u6027\u5728\u8001\u7248\u672c\u7684\u6d4f\u89c8\u5668\u4e2d\u5f80\u5f80\u4e0d\u88ab\u652f\u6301\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u4f7f\u7528Babel<\/strong>\u8fd9\u7c7b\u8f6c\u6362\u5668\u5c06ES6+\u7684\u4ee3\u7801\u8f6c\u6362\u4e3a\u65e7\u7248\u672c\u6d4f\u89c8\u5668\u517c\u5bb9\u7684ES5\u4ee3\u7801\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u901a\u8fc7\u5f15\u5165\u76f8\u5e94\u7684polyfill\u6765\u6a21\u62df\u67d0\u4e9b\u65b0\u7279\u6027\u7684\u884c\u4e3a\uff0c\u786e\u4fdd\u4ee3\u7801\u5728\u6240\u6709\u6d4f\u89c8\u5668\u4e0a\u90fd\u80fd\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n<\/p>\n

\u7efc\u4e0a\u6240\u8ff0\uff0c\u5904\u7406JavaScript\u7684\u5168\u6d4f\u89c8\u5668\u517c\u5bb9\u6027\u95ee\u9898\uff0c\u9700\u8981\u5f00\u53d1\u8005\u5728\u591a\u4e2a\u5c42\u9762\u4e0a\u8fdb\u884c\u7ec6\u81f4\u7684\u5de5\u4f5c\u3002\u901a\u8fc7\u4e86\u89e3\u5404\u79cd\u6d4f\u89c8\u5668\u7684\u517c\u5bb9\u6027\u95ee\u9898\u5e76\u9002\u5f53\u4f7f\u7528\u73b0\u4ee3\u5de5\u5177\u548c\u6280\u672f\uff0c\u53ef\u4ee5\u5927\u5927\u51cf\u5c11\u8fd9\u4e9b\u95ee\u9898\u5bf9\u9879\u76ee\u7684\u5f71\u54cd\u3002<\/p>\n<\/p>\n

\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n

\u5982\u4f55\u89e3\u51b3JavaScript\u5728\u4e0d\u540c\u6d4f\u89c8\u5668\u4e4b\u95f4\u7684\u517c\u5bb9\u6027\u95ee\u9898\uff1f<\/strong><\/p>\n

JavaScript\u5728\u4e0d\u540c\u6d4f\u89c8\u5668\u4e4b\u95f4\u5b58\u5728\u517c\u5bb9\u6027\u95ee\u9898\u662f\u7531\u4e8e\u4e0d\u540c\u6d4f\u89c8\u5668\u5bf9JavaScript\u7684\u5b9e\u73b0\u65b9\u5f0f\u4e0d\u540c\u5bfc\u81f4\u7684\u3002\u4e0b\u9762\u662f\u89e3\u51b3JavaScript\u517c\u5bb9\u6027\u95ee\u9898\u7684\u4e00\u4e9b\u5efa\u8bae\uff1a<\/p>\n

    \n
  1. \n

    \u4f7f\u7528\u73b0\u4ee3\u7684JavaScript\u8bed\u6cd5\u548c\u7279\u6027\u3002\u73b0\u4ee3\u7684JavaScript\u8bed\u6cd5\u548c\u7279\u6027\u5728\u5404\u5927\u4e3b\u6d41\u6d4f\u89c8\u5668\u4e2d\u5f97\u5230\u5e7f\u6cdb\u652f\u6301\uff0c\u56e0\u6b64\u907f\u514d\u4f7f\u7528\u8fc7\u65f6\u7684\u8bed\u6cd5\u548c\u7279\u6027\u662f\u89e3\u51b3\u517c\u5bb9\u6027\u95ee\u9898\u7684\u6709\u6548\u65b9\u6cd5\u3002<\/p>\n<\/li>\n

  2. \n

    \u4f7f\u7528\u7279\u6027\u68c0\u6d4b\u6765\u5224\u65ad\u6d4f\u89c8\u5668\u652f\u6301\u60c5\u51b5\u3002\u53ef\u4ee5\u901a\u8fc7\u68c0\u6d4b\u67d0\u4e2a\u7279\u5b9a\u7279\u6027\u662f\u5426\u5b58\u5728\u6765\u786e\u5b9a\u6d4f\u89c8\u5668\u662f\u5426\u652f\u6301\u5b83\uff0c\u5982\u679c\u4e0d\u652f\u6301\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528\u66ff\u4ee3\u65b9\u6848\u6216\u8005polyfill\u6765\u5b9e\u73b0\u76f8\u540c\u7684\u529f\u80fd\u3002<\/p>\n<\/li>\n

  3. \n

    \u4f7f\u7528\u5e93\u6216\u6846\u67b6\u6765\u7b80\u5316\u517c\u5bb9\u6027\u5904\u7406\u3002\u8bb8\u591aJavaScript\u5e93\u548c\u6846\u67b6\u5df2\u7ecf\u5bf9\u4e0d\u540c\u6d4f\u89c8\u5668\u7684\u517c\u5bb9\u6027\u8fdb\u884c\u4e86\u5904\u7406\uff0c\u4f7f\u7528\u5b83\u4eec\u53ef\u4ee5\u51cf\u5c11\u517c\u5bb9\u6027\u95ee\u9898\u7684\u51fa\u73b0\u3002\u4f8b\u5982\uff0cjQuery\u548cReact\u7b49\u5e93\u5177\u6709\u826f\u597d\u7684\u517c\u5bb9\u6027\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u66f4\u65b9\u4fbf\u5730\u5904\u7406\u517c\u5bb9\u6027\u95ee\u9898\u3002<\/p>\n<\/li>\n

  4. \n

    \u53c2\u8003\u6d4f\u89c8\u5668\u7684\u517c\u5bb9\u6027\u8868\u683c\u548c\u89c4\u8303\u3002\u5404\u4e2a\u6d4f\u89c8\u5668\u63d0\u4f9b\u4e86\u5b98\u65b9\u7684\u517c\u5bb9\u6027\u8868\u683c\u548c\u6807\u51c6\u89c4\u8303\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u53c2\u8003\u8fd9\u4e9b\u4fe1\u606f\u6765\u4e86\u89e3\u4e0d\u540c\u6d4f\u89c8\u5668\u7684\u517c\u5bb9\u6027\u60c5\u51b5\uff0c\u5e76\u6839\u636e\u9700\u8981\u8fdb\u884c\u76f8\u5e94\u7684\u517c\u5bb9\u6027\u5904\u7406\u3002<\/p>\n<\/li>\n

  5. \n

    \u8fdb\u884c\u8de8\u6d4f\u89c8\u5668\u6d4b\u8bd5\u3002\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u53ca\u65f6\u8fdb\u884c\u8de8\u6d4f\u89c8\u5668\u6d4b\u8bd5\u662f\u89e3\u51b3\u517c\u5bb9\u6027\u95ee\u9898\u7684\u5173\u952e\u3002\u901a\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u7528\u4f8b\uff0c\u68c0\u67e5\u4ee3\u7801\u5728\u4e0d\u540c\u6d4f\u89c8\u5668\u4e2d\u7684\u8868\u73b0\uff0c\u53ef\u4ee5\u53ca\u65e9\u53d1\u73b0\u5e76\u89e3\u51b3\u517c\u5bb9\u6027\u95ee\u9898\u3002<\/p>\n<\/li>\n<\/ol>\n

    \u5982\u4f55\u5904\u7406JavaScript\u5728\u65e7\u7248\u672c\u6d4f\u89c8\u5668\u4e2d\u7684\u517c\u5bb9\u6027\u95ee\u9898\uff1f<\/strong><\/p>\n

    \u65e7\u7248\u672c\u7684\u6d4f\u89c8\u5668\u901a\u5e38\u5bf9JavaScript\u7684\u652f\u6301\u6709\u9650\uff0c\u56e0\u6b64\u5728\u5904\u7406JavaScript\u517c\u5bb9\u6027\u95ee\u9898\u65f6\u9700\u8981\u7279\u522b\u7559\u610f\u65e7\u7248\u672c\u6d4f\u89c8\u5668\u3002\u4ee5\u4e0b\u662f\u51e0\u4e2a\u5904\u7406\u65e7\u7248\u672c\u6d4f\u89c8\u5668\u517c\u5bb9\u6027\u7684\u65b9\u6cd5\uff1a<\/p>\n

      \n
    1. \n

      \u4f7f\u7528\u517c\u5bb9\u6027\u8f83\u597d\u7684JavaScript\u5e93\u3002\u8bb8\u591a\u6d41\u884c\u7684JavaScript\u5e93\u548c\u6846\u67b6\u4f1a\u63d0\u4f9b\u5bf9\u65e7\u7248\u672c\u6d4f\u89c8\u5668\u7684\u517c\u5bb9\u6027\u652f\u6301\uff0c\u4f8b\u5982\uff0c\u65e7\u7248\u672c\u7684jQuery\u5e93\u53ef\u4ee5\u5904\u7406\u8bb8\u591a\u65e7\u7248\u672c\u6d4f\u89c8\u5668\u7684\u517c\u5bb9\u6027\u95ee\u9898\u3002<\/p>\n<\/li>\n

    2. \n

      \u4f7f\u7528polyfill\u6765\u586b\u5145\u7f3a\u5931\u7684\u529f\u80fd\u3002Polyfill\u662f\u4e00\u79cd\u4ee3\u7801\u7247\u6bb5\uff0c\u53ef\u4ee5\u5728\u4e0d\u652f\u6301\u67d0\u4e2a\u529f\u80fd\u7684\u6d4f\u89c8\u5668\u4e2d\u5b9e\u73b0\u76f8\u540c\u7684\u529f\u80fd\u3002\u901a\u8fc7\u4f7f\u7528polyfill\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u5c06\u4e00\u4e9b\u65b0\u7684JavaScript\u7279\u6027\u201c\u56de\u6eda\u201d\u5230\u65e7\u7248\u672c\u6d4f\u89c8\u5668\u4e2d\uff0c\u4ece\u800c\u89e3\u51b3\u517c\u5bb9\u6027\u95ee\u9898\u3002<\/p>\n<\/li>\n

    3. \n

      \u9002\u5f53\u964d\u7ea7\u529f\u80fd\u6216\u63d0\u4f9b\u66ff\u4ee3\u65b9\u6848\u3002\u9488\u5bf9\u65e7\u7248\u672c\u6d4f\u89c8\u5668\uff0c\u53ef\u4ee5\u8003\u8651\u63d0\u4f9b\u4e00\u4e9b\u964d\u7ea7\u529f\u80fd\u6216\u66ff\u4ee3\u65b9\u6848\u6765\u66ff\u4ee3\u4e00\u4e9b\u4e0d\u652f\u6301\u7684JavaScript\u529f\u80fd\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u4e0d\u652f\u6301HTML5\u7684\u6d4f\u89c8\u5668\uff0c\u53ef\u4ee5\u63d0\u4f9b\u4e00\u4e9b\u7b80\u5355\u7684\u66ff\u4ee3\u65b9\u6848\u6765\u5b9e\u73b0\u7c7b\u4f3c\u7684\u529f\u80fd\u3002<\/p>\n<\/li>\n<\/ol>\n

      \u600e\u6837\u4f18\u5316JavaScript\u4ee3\u7801\u4ee5\u63d0\u9ad8\u6d4f\u89c8\u5668\u517c\u5bb9\u6027\uff1f<\/strong><\/p>\n

      \u4f18\u5316JavaScript\u4ee3\u7801\u53ef\u4ee5\u5e2e\u52a9\u63d0\u9ad8\u6d4f\u89c8\u5668\u7684\u517c\u5bb9\u6027\u548c\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f18\u5316JavaScript\u4ee3\u7801\u4ee5\u63d0\u9ad8\u6d4f\u89c8\u5668\u517c\u5bb9\u6027\u7684\u65b9\u6cd5\uff1a<\/p>\n

        \n
      1. \n

        \u51cf\u5c11\u5bf9\u6d4f\u89c8\u5668\u6027\u80fd\u7684\u4f9d\u8d56\u3002\u4e00\u4e9b\u590d\u6742\u7684JavaScript\u64cd\u4f5c\u53ef\u80fd\u4f1a\u5f71\u54cd\u6d4f\u89c8\u5668\u7684\u6027\u80fd\uff0c\u7279\u522b\u662f\u5728\u65e7\u7248\u672c\u7684\u6d4f\u89c8\u5668\u4e2d\u3002\u901a\u8fc7\u51cf\u5c11\u8fd9\u4e9b\u64cd\u4f5c\u7684\u4f7f\u7528\uff0c\u6216\u8005\u4f7f\u7528\u66f4\u7b80\u6d01\u9ad8\u6548\u7684\u4ee3\u7801\u6765\u66ff\u4ee3\u5b83\u4eec\uff0c\u53ef\u4ee5\u51cf\u5c11\u517c\u5bb9\u6027\u95ee\u9898\u7684\u51fa\u73b0\u3002<\/p>\n<\/li>\n

      2. \n

        \u4f7f\u7528\u6d4f\u89c8\u5668\u652f\u6301\u7684API\u6216\u529f\u80fd\u3002\u5728\u7f16\u5199\u4ee3\u7801\u65f6\uff0c\u5e94\u8be5\u8003\u8651\u4f7f\u7528\u6d4f\u89c8\u5668\u5df2\u7ecf\u652f\u6301\u7684API\u548c\u529f\u80fd\uff0c\u800c\u4e0d\u662f\u4f9d\u8d56\u4e8e\u4e00\u4e9b\u4e0d\u7a33\u5b9a\u6216\u4e0d\u517c\u5bb9\u7684\u529f\u80fd\u3002\u8fd9\u6837\u53ef\u4ee5\u786e\u4fdd\u4ee3\u7801\u5728\u4e0d\u540c\u6d4f\u89c8\u5668\u4e2d\u7684\u517c\u5bb9\u6027\u3002<\/p>\n<\/li>\n

      3. \n

        \u907f\u514d\u4f7f\u7528\u6d4f\u89c8\u5668\u7279\u5b9a\u7684\u7279\u6027\u6216\u529f\u80fd\u3002\u4e00\u4e9b\u6d4f\u89c8\u5668\u7279\u5b9a\u7684\u7279\u6027\u6216\u529f\u80fd\u53ef\u80fd\u4e0d\u88ab\u6240\u6709\u6d4f\u89c8\u5668\u652f\u6301\uff0c\u56e0\u6b64\u5728\u7f16\u5199\u4ee3\u7801\u65f6\u5e94\u907f\u514d\u4f7f\u7528\u8fd9\u4e9b\u7279\u6027\u3002\u5982\u679c\u9700\u8981\u4f7f\u7528\u8fd9\u4e9b\u7279\u6027\uff0c\u53ef\u4ee5\u4f7f\u7528\u7279\u6027\u68c0\u6d4b\u6765\u5224\u65ad\u6d4f\u89c8\u5668\u662f\u5426\u652f\u6301\u5b83\u4eec\uff0c\u5e76\u63d0\u4f9b\u66ff\u4ee3\u65b9\u6848\u3002<\/p>\n<\/li>\n

      4. \n

        \u8fdb\u884c\u4f18\u5316\u548c\u538b\u7f29\u4ee3\u7801\u3002\u4f18\u5316\u548c\u538b\u7f29JavaScript\u4ee3\u7801\u53ef\u4ee5\u51cf\u5c11\u4ee3\u7801\u7684\u4f53\u79ef\u548c\u52a0\u8f7d\u65f6\u95f4\uff0c\u63d0\u9ad8\u6027\u80fd\u548c\u517c\u5bb9\u6027\u3002\u53ef\u4ee5\u4f7f\u7528\u5de5\u5177\u5982UglifyJS\u7b49\u6765\u8fdb\u884c\u4ee3\u7801\u538b\u7f29\u548c\u4f18\u5316\u3002<\/p>\n<\/li>\n

      5. \n

        \u5b9a\u671f\u66f4\u65b0\u548c\u7ef4\u62a4\u4ee3\u7801\u3002\u968f\u7740\u6d4f\u89c8\u5668\u7684\u66f4\u65b0\u548c\u53d8\u5316\uff0c\u539f\u672c\u517c\u5bb9\u7684\u4ee3\u7801\u5728\u672a\u6765\u53ef\u80fd\u4f1a\u51fa\u73b0\u517c\u5bb9\u6027\u95ee\u9898\u3002\u5b9a\u671f\u66f4\u65b0\u548c\u7ef4\u62a4\u4ee3\u7801\uff0c\u786e\u4fdd\u5176\u4e0e\u6700\u65b0\u7248\u672c\u7684\u6d4f\u89c8\u5668\u517c\u5bb9\uff0c\u5e76\u53ca\u65f6\u5904\u7406\u5df2\u77e5\u7684\u517c\u5bb9\u6027\u95ee\u9898\u3002<\/p>\n<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"\u5728\u63a2\u8ba8JavaScript\u5168\u6d4f\u89c8\u5668\u517c\u5bb9\u7684\u95ee\u9898\u65f6\uff0c\u786e\u5b9e\u6709\u4e00\u4efd\u5168\u9762\u7684\u603b\u7ed3\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u8de8\u8d8a\u6d4f\u89c8\u5668\u4e4b\u95f4\u7684\u5dee\u5f02\u3002\u8fd9\u4efd\u603b […]","protected":false},"author":3,"featured_media":154742,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/154731"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=154731"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/154731\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/154742"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=154731"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=154731"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=154731"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}