( function(){\u2026} )()\u548c( function (){\u2026} () )\u662f\u4e24\u79cdjavascript\u7acb\u5373\u6267\u884c\u51fd\u6570\u7684\u5e38\u89c1\u5199\u6cd5\uff0c\u6700\u521d\u6211\u4ee5\u4e3a\u662f\u4e00\u4e2a\u62ec\u53f7\u5305\u88f9\u533f\u540d\u51fd\u6570\uff0c\u518d\u5728\u540e\u9762\u52a0\u4e2a\u62ec\u53f7\u8c03\u7528\u51fd\u6570\uff0c\u6700\u540e\u8fbe\u5230\u51fd\u6570\u5b9a\u4e49\u540e\u7acb\u5373\u6267\u884c\u7684\u76ee\u7684\u3002\u540e\u6765\u660e\u767d\uff0c\u8981\u5728\u51fd\u6570\u4f53\u540e\u9762\u52a0\u62ec\u53f7\u5c31\u80fd\u7acb\u5373\u8c03\u7528\uff0c\u5219\u8fd9\u4e2a\u51fd\u6570\u5fc5\u987b\u662f\u51fd\u6570\u8868\u8fbe\u5f0f\uff0c\u4e0d\u80fd\u662f\u51fd\u6570\u58f0\u660e\u3002<\/p>\n
\u5728function\u524d\u9762\u52a0\uff01\u3001+\u3001 -\u751a\u81f3\u662f\u9017\u53f7\u7b49\u5230\u90fd\u53ef\u4ee5\u8d77\u5230\u51fd\u6570\u5b9a\u4e49\u540e\u7acb\u5373\u6267\u884c\u7684\u6548\u679c\uff0c\u800c\uff08\uff09\u3001\uff01\u3001+\u3001-\u3001=\u7b49\u8fd0\u7b97\u7b26\uff0c\u90fd\u5c06\u51fd\u6570\u58f0\u660e\u8f6c\u6362\u6210\u51fd\u6570\u8868\u8fbe\u5f0f\uff0c\u6d88\u9664\u4e86javascript\u5f15\u64ce\u8bc6\u522b\u51fd\u6570\u8868\u8fbe\u5f0f\u548c\u51fd\u6570\u58f0\u660e\u7684\u6b67\u4e49\uff0c\u544a\u8bc9javascript\u5f15\u64ce\u8fd9\u662f\u4e00\u4e2a\u51fd\u6570\u8868\u8fbe\u5f0f\uff0c\u4e0d\u662f\u51fd\u6570\u58f0\u660e\uff0c\u53ef\u4ee5\u5728\u540e\u9762\u52a0\u62ec\u53f7\uff0c\u5e76\u7acb\u5373\u6267\u884c\u51fd\u6570\u7684\u4ee3\u7801\u3002\u63a5\u4e0b\u6765\u770b\u770b\u533f\u540d\u97e9\u8f93\u7684\u51e0\u79cd\u5199\u6cd5\u3002<\/p>\n
\u533f\u540d\u51fd\u6570\u5199\u6cd5\u4e00\uff1a<\/p>\n
(function(){<\/p>\n
\/\/do something<\/p>\n
}())
\n\u533f\u540d\u51fd\u6570\u5199\u6cd5\u4e8c\uff1a<\/p>\n
(function(){<\/p>\n
\/\/do something<\/p>\n
})();
\n\u533f\u540d\u51fd\u6570\u5199\u6cd5\u4e09\uff1a <\/p>\n
!function(){ \/\/\u53ef\u4ee5\u628a!\u6362\u6210+\u3001-\u3001=\u7b49<\/p>\n
\/\/do something<\/p>\n
}();<\/p>\n
\u533f\u540d\u51fd\u6570\u5199\u6cd5\u56db\uff1a<\/p>\n
void function(){<\/p>\n
\/\/do something<\/p>\n
}();
\n \u52a0\u62ec\u53f7\u662f\u6700\u5b89\u5168\u7684\u505a\u6cd5\uff0c\u56e0\u4e3a\uff01\u3001+\u3001-\u7b49\u8fd0\u7b97\u7b26\u8fd8\u4f1a\u548c\u51fd\u6570\u7684\u8fd4\u56de\u503c\u8fdb\u884c\u8fd0\u7b97\uff0c\u6709\u65f6\u9020\u6210\u4e0d\u5fc5\u8981\u7684\u9ebb\u70e6\u3002<\/p>\n
\u52a0\u62ec\u53f7\u7684\u4e24\u79cd\u5199\u6cd5\u4e2d\uff0c\u4e00\u5b9a\u8981\u6ce8\u610f\u533f\u540d\u51fd\u6570\u7684\u524d\u9762\u4e00\u5b9a\u597d\u6709\u5206\u53f7\uff0c\u5426\u5219\u6709\u53ef\u80fd\u5f15\u53d1\u9519\u8bef\u3002\u5148\u770b\u4e0b\u5199\u6cd5\u4e00\u3002\u4e0b\u9762\u7684a\u51fd\u6570\u4f1a\u628a\u540e\u9762\u7684\u533f\u540d\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\u4f20\u5165a\uff0c\u5bfc\u81f4a\u76f4\u63a5\u53d8\u6210undefined\uff0c\u800c\u4e0d\u662f\u4e00\u4e2a\u51fd\u6570\u3002<\/p>\n
var a =function(value){alert(value);} \/\/value\u503c\u4e3aundefined\u3002\u56e0\u4e3a\u6ca1\u6709\u8fd4\u56de\u503c,a\u4e5f\u53d8\u6210undefined<\/p>\n
(function(){<\/p>\n
alert(1);<\/p>\n
}());<\/p>\n
\u518d\u770b\u4e0b\u5199\u6cd5\u4e8c\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u4f1a\u629b\u51fa\u9519\u8bef\u201cUncaught TypeError: (intermediate value)(…) is not a function(\u2026)\u201d\u3002 \u4e0a\u4f8b\u4e2d\u5c31\u51fa\u73b0\u4e86\u9519\u8bef\uff0c\u8fd9\u5c31\u662f\u56e0\u4e3aa\u51fd\u6570\u4f1a\u628a\u4ed6\u540e\u9762\u7684\u533f\u540d\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\u4f20\u5165a\u4e2d\uff0c\u8fd9\u4e5f\u5c31\u89e3\u91ca\u4e86\u4e3a\u4ec0\u4e48\u6709\u4eba\u4e60\u60ef\u5728\u533f\u540d\u51fd\u6570\u4e4b\u524d\u6dfb\u52a0;\u4e86\uff0c\u5c31\u662f\u4e3a\u4e86\u9632\u6b62\u4e0a\u6587\u6ca1\u6709\u4e25\u683c\u9075\u5faajavascript\u8bed\u6cd5\uff0c\u6f0f\u6389;\u7684\u95ee\u9898\u3002<\/p>\n
var a = function(){}<\/p>\n
(function(){<\/p>\n
alert(1);<\/p>\n
})(); \/\/\u629b\u51fa\u9519\u8bef\u3002\u6700\u540e\u9762\u7684()\u6ca1\u6709\u5e94\u7528\u5728\u51fd\u6570\u4e0a\u3002Uncaught TypeError: (intermediate value)(…) is not a function(\u2026)<\/p>\n
javascript\u4e2d\u6ca1\u7528\u79c1\u6709\u4f5c\u7528\u57df\u7684\u6982\u5ff5\uff0c\u5982\u679c\u5728\u591a\u4eba\u5f00\u53d1\u7684\u9879\u76ee\u4e0a\uff0c\u4f60\u5728\u5168\u5c40\u6216\u5c40\u90e8\u4f5c\u7528\u57df\u4e2d\u58f0\u660e\u4e86\u4e00\u4e9b\u53d8\u91cf\uff0c\u53ef\u80fd\u4f1a\u88ab\u5176\u4ed6\u4eba\u4e0d\u5c0f\u5fc3\u7528\u540c\u540d\u7684\u53d8\u91cf\u7ed9\u8986\u76d6\u6389\uff0c\u6839\u636ejavascript\u51fd\u6570\u4f5c\u7528\u57df\u94fe\u7684\u7279\u6027\uff0c\u53ef\u4ee5\u4f7f\u7528\u8fd9\u79cd\u6280\u672f\u53ef\u4ee5\u6a21\u4eff\u4e00\u4e2a\u79c1\u6709\u4f5c\u7528\u57df\uff0c\u7528\u533f\u540d\u51fd\u6570\u4f5c\u4e3a\u4e00\u4e2a\u201c\u5bb9\u5668\u201d\uff0c\u201c\u5bb9\u5668\u201d\u5185\u90e8\u53ef\u4ee5\u8bbf\u95ee\u5916\u90e8\u7684\u53d8\u91cf\uff0c\u800c\u5916\u90e8\u73af\u5883\u4e0d\u80fd\u8bbf\u95ee\u201c\u5bb9\u5668\u201d\u5185\u90e8\u7684\u53d8\u91cf\uff0c\u6240\u4ee5( function(){\u2026} )()\u5185\u90e8\u5b9a\u4e49\u7684\u53d8\u91cf\u4e0d\u4f1a\u548c\u5916\u90e8\u7684\u53d8\u91cf\u53d1\u751f\u51b2\u7a81\uff0c\u4fd7\u79f0\u201c\u533f\u540d\u5305\u88f9\u5668\u201d\u6216\u201c\u547d\u540d\u7a7a\u95f4\u201d\u3002 <\/p>\n
JQuery\u4f7f\u7528\u7684\u5c31\u662f\u8fd9\u79cd\u65b9\u6cd5\uff0c\u5c06JQuery\u4ee3\u7801\u5305\u88f9\u5728 ( function (window,undefined){\u2026jquery\u4ee3\u7801\u2026} (window))\u4e2d\uff0c\u5728\u5168\u5c40\u4f5c\u7528\u57df\u4e2d\u8c03\u7528JQuery\u4ee3\u7801\u65f6\uff0c\u53ef\u4ee5\u8fbe\u5230\u4fdd\u62a4JQuery\u5185\u90e8\u53d8\u91cf\u7684\u4f5c\u7528\u3002<\/p>\n
\u6b22\u8fce\u5206\u4eab\u672c\u6587\uff0c\u8f6c\u8f7d\u8bf7\u4fdd\u7559\u51fa\u5904\uff1a\u524d\u7aefABC<\/a> » js\u533f\u540d\u51fd\u6570\u62ec\u53f7\u7684\u4f5c\u7528<\/a><\/p>","protected":false},"excerpt":{"rendered":" ( function(){\u2026} )()\u548c( function (){\u2026} () )\u662f\u4e24\u79cdjavascript\u7acb\u5373\u6267\u884c\u51fd\u6570\u7684\u5e38\u89c1\u5199\u6cd5\uff0c\u6700\u521d\u6211\u4ee5\u4e3a\u662f\u4e00\u4e2a\u62ec\u53f7\u5305\u88f9\u533f\u540d\u51fd\u6570\uff0c\u518d\u5728\u540e\u9762\u52a0\u4e2a\u62ec\u53f7\u8c03\u7528\u51fd\u6570\uff0c\u6700\u540e\u8fbe\u5230 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"_links":{"self":[{"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts\/1993"}],"collection":[{"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1993"}],"version-history":[{"count":1,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts\/1993\/revisions"}],"predecessor-version":[{"id":1994,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts\/1993\/revisions\/1994"}],"wp:attachment":[{"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1993"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1993"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1993"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}