{"id":160332,"date":"2024-05-08T13:28:19","date_gmt":"2024-05-08T05:28:19","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/160332.html"},"modified":"2024-05-08T13:28:25","modified_gmt":"2024-05-08T05:28:25","slug":"%e5%93%aa%e9%87%8c%e8%83%bd%e7%9c%8b%e5%88%b0javascript%e7%9a%84%e5%86%85%e9%83%a8%e5%8e%9f%e7%94%9f%e6%96%b9%e6%b3%95%e6%98%af%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e7%9a%84","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/160332.html","title":{"rendered":"\u54ea\u91cc\u80fd\u770b\u5230javascript\u7684\u5185\u90e8\u539f\u751f\u65b9\u6cd5\u662f\u5982\u4f55\u5b9e\u73b0\u7684"},"content":{"rendered":"

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JavaScript\u7684\u5185\u90e8\u539f\u751f\u65b9\u6cd5\u662f\u7531\u6d4f\u89c8\u5668\u5f15\u64ce\u5b9e\u73b0<\/strong>\u7684\uff0c\u4f8b\u5982V8\u5f15\u64ce\uff08\u7528\u4e8eChrome\u548cNode.js\uff09\u3001SpiderMonkey\uff08\u7528\u4e8eFirefox\uff09\u548c JavaScriptCore\uff08\u7528\u4e8eSafari\uff09\u7b49\u3002\u8fd9\u4e9b\u65b9\u6cd5\u7684\u5177\u4f53\u5b9e\u73b0\u662f\u5f00\u6e90\u7684\uff0c\u56e0\u6b64\u5f00\u53d1\u8005\u53ef\u4ee5\u901a\u8fc7\u67e5\u770b\u76f8\u5e94\u7684\u6e90\u4ee3\u7801\u6765\u4e86\u89e3\u5b83\u4eec\u7684\u5b9e\u73b0\u7ec6\u8282\u3002\u4ee5V8\u5f15\u64ce\u4e3a\u4f8b\uff0c\u5b83\u7684\u6e90\u7801\u6258\u7ba1\u5728Google\u7684\u5b98\u65b9Git\u4ed3\u5e93\uff0c\u4efb\u4f55\u4eba\u90fd\u53ef\u4ee5\u4e0b\u8f7d\u548c\u7814\u7a76\u3002\u5bf9\u4e8e\u60f3\u8981\u6df1\u5165\u4e86\u89e3\u7279\u5b9a\u5185\u90e8\u539f\u751f\u65b9\u6cd5\u5982\u4f55\u5b9e\u73b0\u7684\u5f00\u53d1\u8005\u6765\u8bf4\uff0c\u6df1\u5165\u7814\u7a76\u8fd9\u4e9b\u5f15\u64ce\u7684\u6e90\u7801\u662f\u6700\u76f4\u63a5\u3001\u6700\u51c6\u786e\u7684\u9014\u5f84\u3002<\/p>\n<\/p>\n

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\u4e8c\u3001SpiderMonkey\u5f15\u64ce\u6e90\u7801\u63a2\u7d22<\/h3>\n<\/p>\n

SpiderMonkey<\/strong>\u662fMozilla\u63a8\u51fa\u7684JavaScript\u5f15\u64ce\uff0c\u5b83\u4e3aFirefox\u6d4f\u89c8\u5668\u63d0\u4f9b\u652f\u6301\u3002\u82e5\u8981\u4e86\u89e3JavaScript\u5728SpiderMonkey\u4e2d\u7684\u5185\u90e8\u539f\u751f\u65b9\u6cd5\u5b9e\u73b0\uff0c\u5219\u9700\u8981\u505a\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n<\/p>\n

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\u5176\u6b21\uff0c\u5b66\u4e60SpiderMonkey\u7684\u67b6\u6784\u548c\u7ec4\u4ef6\u3002SpiderMonkey\u6709\u81ea\u5df1\u7684\u6784\u5efa\u5de5\u5177\u548c\u4ee3\u7801\u7ec4\u7ec7\u65b9\u5f0f\u3002\u5b83\u5c06JavaScript\u5f15\u64ce\u7684\u4e0d\u540c\u65b9\u9762\u5212\u5206\u4e3a\u5404\u4e2a\u6a21\u5757\uff0c\u4f8b\u5982\u5783\u573e\u56de\u6536\u3001\u89e3\u91ca\u5668\u548cJIT\uff08\u5373\u65f6\u7f16\u8bd1\u5668\uff09\u3002<\/p>\n<\/p>\n

\u4e09\u3001JavaScriptCore\u5f15\u64ce\u6e90\u7801\u63a2\u7d22<\/h3>\n<\/p>\n

JavaScriptCore<\/strong>\u662f\u82f9\u679c\u516c\u53f8\u4e3a\u5176Webkit\u6d4f\u89c8\u5668\u5f15\u64ce\u63d0\u4f9b\u52a8\u529b\u7684JavaScript\u5f15\u64ce\u3002\u5b83\u7684\u6e90\u7801\u540c\u6837\u5f00\u653e\uff1a<\/p>\n<\/p>\n

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\u56db\u3001ECMAScript\u89c4\u8303\u63a2\u7a76<\/h3>\n<\/p>\n

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\u603b\u7684\u6765\u8bf4\uff0c\u7406\u89e3JavaScript\u7684\u5185\u90e8\u539f\u751f\u65b9\u6cd5\u9700\u8981\u5bf9\u4e3b\u6d41\u7684JavaScript\u5f15\u64ce\u6e90\u7801\u6709\u6df1\u5165\u7814\u7a76\uff0c\u5e76\u4e14\u9700\u8981\u7ed3\u5408ECMAScript\u89c4\u8303\u6765\u5b8c\u6574\u5730\u7406\u89e3\u5176\u884c\u4e3a\u548c\u5b9e\u73b0\u3002\u901a\u8fc7\u8fd9\u4e9b\u9014\u5f84\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u63d0\u5347\u5bf9JavaScript\u8fd0\u884c\u65f6\u884c\u4e3a\u7684\u7406\u89e3\u5e76\u636e\u6b64\u4f18\u5316\u81ea\u5df1\u7684\u4ee3\u7801\u3002<\/p>\n<\/p>\n

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

1. JavaScript\u7684\u5185\u90e8\u539f\u751f\u65b9\u6cd5\u662f\u5982\u4f55\u5b9e\u73b0\u7684\uff1f<\/strong><\/p>\n

JavaScript\u7684\u5185\u90e8\u539f\u751f\u65b9\u6cd5\u662f\u901a\u8fc7\u6d4f\u89c8\u5668\u6216JavaScript\u5f15\u64ce\u5b9e\u73b0\u7684\u3002\u6d4f\u89c8\u5668\u5382\u5546\u6216JavaScript\u5f15\u64ce\u5f00\u53d1\u8005\u4f1a\u4f7f\u7528C++\u7b49\u5e95\u5c42\u7f16\u7a0b\u8bed\u8a00\u7f16\u5199\u8fd9\u4e9b\u65b9\u6cd5\u3002\u8fd9\u4e9b\u65b9\u6cd5\u7684\u5177\u4f53\u5b9e\u73b0\u8fc7\u7a0b\u53ef\u80fd\u56e0\u4e0d\u540c\u6d4f\u89c8\u5668\u6216JavaScript\u5f15\u64ce\u800c\u5f02\u3002<\/p>\n

\u4f8b\u5982\uff0c\u5bf9\u4e8e\u6570\u7ec4\u7684push()\u65b9\u6cd5\uff0c\u5728\u5927\u591a\u6570JavaScript\u5f15\u64ce\u4e2d\uff0c\u5b83\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\uff0c\u5e76\u5c06\u5143\u7d20\u6dfb\u52a0\u5230\u65b0\u6570\u7ec4\u7684\u672b\u5c3e\u3002\u7136\u540e\uff0c\u5b83\u4f1a\u5c06\u539f\u59cb\u6570\u7ec4\u7684\u5143\u7d20\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d\u3002\u8fd9\u6837\u5b9e\u73b0\u7684\u597d\u5904\u662f\u5728\u5904\u7406\u5927\u6570\u7ec4\u65f6\u80fd\u591f\u66f4\u9ad8\u6548\u5730\u5206\u914d\u5185\u5b58\u548c\u590d\u5236\u5143\u7d20\u3002<\/p>\n

2. \u6211\u60f3\u6df1\u5165\u4e86\u89e3JavaScript\u7684\u5185\u90e8\u539f\u751f\u65b9\u6cd5\uff0c\u5e94\u8be5\u4ece\u54ea\u91cc\u5f00\u59cb\u67e5\u627e\uff1f<\/strong><\/p>\n

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