{"id":43943,"date":"2023-12-11T15:01:22","date_gmt":"2023-12-11T07:01:22","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=43943"},"modified":"2023-12-11T15:01:22","modified_gmt":"2023-12-11T07:01:22","slug":"%e4%bb%80%e4%b9%88%e6%98%afjs%e7%9a%84%e9%97%ad%e5%8c%85%ef%bc%9f%e6%9c%89%e4%bb%80%e4%b9%88%e4%bd%9c%e7%94%a8%ef%bc%8c%e7%94%a8%e9%97%ad%e5%8c%85%e5%86%99%e4%b8%aa%e5%8d%95%e4%be%8b%e6%a8%a1-2","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/11\/%e4%bb%80%e4%b9%88%e6%98%afjs%e7%9a%84%e9%97%ad%e5%8c%85%ef%bc%9f%e6%9c%89%e4%bb%80%e4%b9%88%e4%bd%9c%e7%94%a8%ef%bc%8c%e7%94%a8%e9%97%ad%e5%8c%85%e5%86%99%e4%b8%aa%e5%8d%95%e4%be%8b%e6%a8%a1-2\/","title":{"rendered":"\u4ec0\u4e48\u662fjs\u7684\u95ed\u5305\uff1f\u6709\u4ec0\u4e48\u4f5c\u7528\uff0c\u7528\u95ed\u5305\u5199\u4e2a\u5355\u4f8b\u6a21\u5f0f"},"content":{"rendered":"

“`” \u53c2\u8003\u56de\u7b54\uff1a<\/p>\n

MDN\u5bf9\u95ed\u5305\u7684\u5b9a\u4e49\u662f\uff1a\u95ed\u5305\u662f\u6307\u90a3\u4e9b\u80fd\u591f\u8bbf\u95ee\u81ea\u7531\u53d8\u91cf\u7684\u51fd\u6570\uff0c\u81ea\u7531\u53d8\u91cf\u662f\u6307\u5728\u51fd\u6570\u4e2d\u4f7f\u7528\u7684\uff0c\u4f46\u65e2\u4e0d\u662f\u51fd\u6570\u53c2\u6570\u53c8\u4e0d\u662f\u51fd\u6570\u7684\u5c40\u90e8\u53d8\u91cf\u7684\u53d8\u91cf\uff0c\u7531\u6b64\u53ef\u4ee5\u770b\u51fa\uff0c\u95ed\u5305=\u51fd\u6570+\u51fd\u6570\u80fd\u591f\u8bbf\u95ee\u7684\u81ea\u7531\u53d8\u91cf\uff0c\u6240\u4ee5\u4ece\u6280\u672f\u7684\u89d2\u5ea6\u8bb2\uff0c\u6240\u6709JS\u51fd\u6570\u90fd\u662f\u95ed\u5305\uff0c\u4f46\u662f\u8fd9\u662f\u7406\u8bba\u4e0a\u7684\u95ed\u5305\uff0c\u8fd8\u6709\u4e00\u4e2a\u5b9e\u8df5\u89d2\u5ea6\u4e0a\u7684\u95ed\u5305\uff0c\u4ece\u5b9e\u8df5\u89d2\u5ea6\u4e0a\u6765\u8bf4\uff0c\u53ea\u6709\u6ee1\u8db31\u3001\u5373\u4f7f\u521b\u5efa\u5b83\u7684\u4e0a\u4e0b\u6587\u5df2\u7ecf\u9500\u6bc1\uff0c\u5b83\u4ecd\u7136\u5b58\u5728\uff0c2\u3001\u5728\u4ee3\u7801\u4e2d\u5f15\u5165\u4e86\u81ea\u7531\u53d8\u91cf\uff0c\u624d\u79f0\u4e3a\u95ed\u5305<\/p>\n

\u95ed\u5305\u7684\u5e94\u7528\uff1a<\/p>\n

\u6a21\u4eff\u5757\u7ea7\u4f5c\u7528\u57df\u30022\u3001\u4fdd\u5b58\u5916\u90e8\u51fd\u6570\u7684\u53d8\u91cf\u30023\u3001\u5c01\u88c5\u79c1\u6709\u53d8\u91cf<\/p>\n

\u5355\u4f8b\u6a21\u5f0f\uff1a<\/p>\n

<pre><code class=""language-javascript"" lang=""javascript"">var Singleton = (function(){
\n var instance;
\n var CreateSingleton = function (name) {
\n this.name = name;
\n if(instance) {
\n return instance;
\n }
\n \/\/ \u6253\u5370\u5b9e\u4f8b\u540d\u5b57
\n this.getName();
\n \/\/ instance = this;
\n \/\/ return instance;
\n return instance = this;
\n }
\n \/\/ \u83b7\u53d6\u5b9e\u4f8b\u7684\u540d\u5b57
\n CreateSingleton.prototype.getName = function() {
\n console.log(this.name)
\n }
\n return CreateSingleton;
\n})();
\n \/\/ \u521b\u5efa\u5b9e\u4f8b\u5bf9\u8c611
\n var a = new Singleton('a');
\n \/\/ \u521b\u5efa\u5b9e\u4f8b\u5bf9\u8c612
\n var b = new Singleton('b');
\n console.log(a===b);<\/p>\n

<\/code><\/pre><\/p>\n

\u00a0<\/p>\n

<pre><code> "“`
\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"

“`” \u53c2\u8003\u56de\u7b54\uff1a MDN\u5bf9\u95ed\u5305\u7684\u5b9a\u4e49\u662f\uff1a\u95ed\u5305\u662f\u6307\u90a3\u4e9b\u80fd\u591f\u8bbf\u95ee\u81ea\u7531\u53d8\u91cf\u7684\u51fd\u6570\uff0c\u81ea\u7531\u53d8\u91cf […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-43943","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/43943","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=43943"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/43943\/revisions"}],"predecessor-version":[{"id":43944,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/43943\/revisions\/43944"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=43943"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=43943"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=43943"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}