{"id":2098,"date":"2017-04-20T17:41:08","date_gmt":"2017-04-20T09:41:08","guid":{"rendered":"http:\/\/www.qdabc.cn\/?p=2098"},"modified":"2017-04-20T17:41:08","modified_gmt":"2017-04-20T09:41:08","slug":"es6%e6%a0%b8%e5%bf%83%e7%9f%a5%e8%af%86","status":"publish","type":"post","link":"http:\/\/www.qdabc.cn\/?p=2098","title":{"rendered":"ES6\u6838\u5fc3\u77e5\u8bc6"},"content":{"rendered":"<h2>ES6\u6838\u5fc3\u77e5\u8bc6<\/h2>\n<p>\uff081\uff09let<\/p>\n<p>\u4f7f\u7528let\u58f0\u660e\u7684\u53d8\u91cf\u662f\u5757\u7ea7\u4f5c\u7528\u57df\uff1b\u53ef\u4ee5\u9632\u6b62\u7528\u6765\u8ba1\u6570\u7684\u5faa\u73af\u53d8\u91cf\u6cc4\u9732\u4e3a\u5168\u5c40\u53d8\u91cf\uff08\u4e5f\u53ef\u4ee5\u7528\u95ed\u5305\u7684\u77e5\u8bc6\u6765\u5b9e\u73b0\uff0c\u5982\u4e0b\u4f8b\uff09<\/p>\n<pre>\/\/\u6cc4\u9732\u60c5\u51b5  \r\nvar clickBoxs = document.querySelectorAll('.clickBox');  \r\nfor(var i=0;i&lt;clickBoxs.length;i++){  \r\n    clickBoxs[i].onclick = function(){  \r\n        console.log(i);  \r\n    }  \r\n}  \r\n\/\/\u7528\u95ed\u5305\u5b9e\u73b0  \r\nvar clickBoxs = document.querySelectorAll('.clickBox');  \r\nfor(var i=0;i&lt;clickBoxs.length;i++){  \r\n    clickBoxs[i].onclick = iteratorFactory(i);  \r\n}  \r\n  \r\nfunction iteratorFactory(i){  \r\n    var onclick = function(e){  \r\n        console.log(i);  \r\n    }  \r\n    return onclick;  \r\n}<\/pre>\n<p>\uff082\uff09const<\/p>\n<p>\u58f0\u660e\u5e38\u91cf<\/p>\n<p>\uff083\uff09class\uff0cextends\uff0csuper<\/p>\n<p>class\u58f0\u660e\u7c7b\uff0cextends\u5b9e\u73b0\u7ee7\u627f\uff08\u6bd4\u539f\u578b\u7ee7\u627f\u6e05\u6670\u591a\u4e86\uff0c\u4e0e\u4f20\u7edf\u9759\u6001\u7c7b\u578b\u8bed\u8a00\u7c7b\u4f3c\uff09\uff0c\u8c03\u7528super\u65b9\u6cd5\u5c06\u7236\u5b9e\u4f8b\u8d4b\u503c\u7ed9\u5f53\u524dthis\u5bf9\u8c61\u3002<\/p>\n<pre>class Animal{  \r\n    constructor(){  \r\n        this.type = 'animal';  \r\n    }  \r\n    says(say){  \r\n        console.log('...');  \r\n    }  \r\n}  \r\n  \r\nclass Cat extends Animal{  \r\n    constructor(){  \r\n        super();  \r\n        this.type = 'cat';  \r\n    }  \r\n}<\/pre>\n<p>\uff084\uff09\u7bad\u5934\u51fd\u6570<\/p>\n<p>\u7bad\u5934\u51fd\u6570\u4f53\u5185\u7684this\u5bf9\u8c61\uff0c\u5c31\u662f\u5b9a\u4e49\u65f6\u6240\u5728\u7684\u5bf9\u8c61\uff0c\u800c\u4e0d\u662f\u4f7f\u7528\u65f6\u6240\u5728\u7684\u5bf9\u8c61<\/p>\n<p>\uff085\uff09\u6a21\u677f\u5b57\u7b26\u4e32<\/p>\n<p>\u5f88\u5bb9\u6613\u6dfb\u52a0\u4e00\u6bb5html\u5230\u6587\u6863\u4e2d\uff0c\u53cd\u5f15\u53f7&#8220;\u6807\u8bc6\u8d77\u59cb\uff0c${}\u6765\u5f15\u7528\u53d8\u91cf<\/p>\n<p>\uff086\uff09\u89e3\u6784<\/p>\n<p>ES6\u5141\u8bb8\u6309\u7167\u4e00\u5b9a\u7684\u6a21\u5f0f\uff0c\u4ece\u6570\u7ec4\u548c\u5bf9\u8c61\u4e2d\u63d0\u53d6\u503c\uff0c\u5bf9\u53d8\u91cf\u8fdb\u884c\u8d4b\u503c<\/p>\n<p>\uff087\uff09default\uff0crest<\/p>\n<pre>\/\/\u6307\u5b9a\u9ed8\u8ba4\u503c  \r\nfunction animal(type = 'cat'){  \r\n    console.log(type);  \r\n}  \r\n  \r\n\/\/rest  \r\nfunction animals(...types){  \r\n    console.log(types);  \r\n}  \r\nanimals('cat','dog','fish'); \/\/[\"cat\",\"dog\",\"fish\"]<\/pre>\n<p>&nbsp;<\/p>\n<p class=\"post-copyright\">\u6b22\u8fce\u5206\u4eab\u672c\u6587\uff0c\u8f6c\u8f7d\u8bf7\u4fdd\u7559\u51fa\u5904\uff1a<a href=\"http:\/\/www.qdabc.cn\">\u524d\u7aefABC<\/a> &raquo; <a href=\"http:\/\/www.qdabc.cn\/?p=2098\">ES6\u6838\u5fc3\u77e5\u8bc6<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>ES6\u6838\u5fc3\u77e5\u8bc6 \uff081\uff09let \u4f7f\u7528let\u58f0\u660e\u7684\u53d8\u91cf\u662f\u5757\u7ea7\u4f5c\u7528\u57df\uff1b\u53ef\u4ee5\u9632\u6b62\u7528\u6765\u8ba1\u6570\u7684\u5faa\u73af\u53d8\u91cf\u6cc4\u9732\u4e3a\u5168\u5c40\u53d8\u91cf\uff08\u4e5f\u53ef\u4ee5\u7528\u95ed\u5305\u7684\u77e5\u8bc6\u6765\u5b9e\u73b0\uff0c\u5982\u4e0b\u4f8b\uff09 \/\/\u6cc4\u9732\u60c5\u51b5 var clickBoxs = docume [&hellip;]<\/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":[143],"_links":{"self":[{"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts\/2098"}],"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=2098"}],"version-history":[{"count":1,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts\/2098\/revisions"}],"predecessor-version":[{"id":2099,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=\/wp\/v2\/posts\/2098\/revisions\/2099"}],"wp:attachment":[{"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2098"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2098"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.qdabc.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2098"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}