{"id":1189,"date":"2017-07-26T14:29:08","date_gmt":"2017-07-26T06:29:08","guid":{"rendered":"http:\/\/feizhaojun.com\/?p=1189"},"modified":"2020-09-15T19:35:22","modified_gmt":"2020-09-15T11:35:22","slug":"javascript%e5%8c%bf%e5%90%8d%e5%87%bd%e6%95%b0%e7%9a%84%e5%86%99%e6%b3%95","status":"publish","type":"post","link":"https:\/\/feizhaojun.com\/?p=1189","title":{"rendered":"JavaScript\u533f\u540d\u51fd\u6570\u7684\u5199\u6cd5"},"content":{"rendered":"<pre><code class=\"language-js\">\/\/ \u6700\u5e38\u7528\u7684\u4e24\u79cd\u5199\u6cd5\n(function(){ \/* code *\/ }()); \/\/ \u8001\u9053\u63a8\u8350\u5199\u6cd5\n(function(){ \/* code *\/ })(); \/\/ \u5f53\u7136\u8fd9\u79cd\u4e5f\u53ef\u4ee5\n\n\/\/ \u62ec\u53f7\u548cJS\u7684\u4e00\u4e9b\u64cd\u4f5c\u7b26\uff08\u5982 = &amp;&amp; || , \u7b49\uff09\u53ef\u4ee5\u5728\u51fd\u6570\u8868\u8fbe\u5f0f\u548c\u51fd\u6570\u58f0\u660e\u4e0a\u6d88\u9664\u6b67\u4e49\n\/\/ \u5982\u4e0b\u4ee3\u7801\u4e2d\uff0c\u89e3\u6790\u5668\u5df2\u7ecf\u77e5\u9053\u4e00\u4e2a\u662f\u8868\u8fbe\u5f0f\u4e86\uff0c\u4e8e\u662f\u4e5f\u4f1a\u628a\u53e6\u4e00\u4e2a\u9ed8\u8ba4\u4e3a\u8868\u8fbe\u5f0f\n\/\/ \u4f46\u662f\u4e24\u8005\u4ea4\u6362\u5219\u4f1a\u62a5\u9519\nvar i = function(){ return 10; }();\ntrue &amp;&amp; function(){ \/* code *\/ }();\n0, function(){ \/* code *\/ }();\n\n\/\/ \u5982\u679c\u4f60\u4e0d\u6015\u4ee3\u7801\u6666\u6da9\u96be\u8bfb\uff0c\u4e5f\u53ef\u4ee5\u9009\u62e9\u4e00\u5143\u8fd0\u7b97\u7b26\n!function(){ \/* code *\/ }();\n~function(){ \/* code *\/ }();\n-function(){ \/* code *\/ }();\n+function(){ \/* code *\/ }();\n\n\/\/ \u4f60\u4e5f\u53ef\u4ee5\u8fd9\u6837\nnew function(){ \/* code *\/ }\nnew function(){ \/* code *\/ }() \/\/ \u5e26\u53c2\u6570\n<\/code><\/pre>\n<p>\u4e3a\u4e86\u63d0\u9ad8\u4ee3\u7801\u53ef\u8bfb\u6027\uff0c\u6211\u4eec\u63a8\u8350\u8fd9\u4e2a\u5199\u6cd5\u4e5f\u52a0\u4e0a()\uff1a<\/p>\n<pre><code class=\"language-js\">var i = function(){ return 10; }();\n\/\/ \u6539\u4e3a\nvar i = (function(){ return 10; }());\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\/\/ \u6700\u5e38\u7528\u7684\u4e24\u79cd\u5199\u6cd5 (function(){ \/* code *\/ }()); \/\/ \u8001\u9053\u63a8\u8350\u5199\u6cd5 (functio&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3,5],"tags":[],"class_list":["post-1189","post","type-post","status-publish","format-standard","hentry","category-fe","category-javascript"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/feizhaojun.com\/index.php?rest_route=\/wp\/v2\/posts\/1189","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/feizhaojun.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/feizhaojun.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/feizhaojun.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/feizhaojun.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1189"}],"version-history":[{"count":4,"href":"https:\/\/feizhaojun.com\/index.php?rest_route=\/wp\/v2\/posts\/1189\/revisions"}],"predecessor-version":[{"id":2894,"href":"https:\/\/feizhaojun.com\/index.php?rest_route=\/wp\/v2\/posts\/1189\/revisions\/2894"}],"wp:attachment":[{"href":"https:\/\/feizhaojun.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1189"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feizhaojun.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1189"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feizhaojun.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1189"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}