{"id":2666,"date":"2023-11-14T14:26:31","date_gmt":"2023-11-14T06:26:31","guid":{"rendered":""},"modified":"2023-11-14T14:26:31","modified_gmt":"2023-11-14T06:26:31","slug":"JavaScript\u6570\u7ec4","status":"publish","type":"post","link":"https:\/\/bianchenghao6.com\/2666.html","title":{"rendered":"JavaScript\u6570\u7ec4"},"content":{"rendered":"<div class=\"titlebox\">\n<h1>JavaScript\u6570\u7ec4<\/h1>\n<\/div>\n<div class=\"desc\">\n <strong> JavaScript\u6570\u7ec4<\/strong>\u662f\u4e00\u4e2a\u5bf9\u8c61\uff0c\u4ee3\u8868\u4e00\u7ec4\u76f8\u4f3c\u7c7b\u578b\u7684\u5143\u7d20\u3002\n<\/div>\n<div class=\"desc\">\n  \u67093\u79cd\u65b9\u6cd5\u7528JavaScript\u6784\u9020\u6570\u7ec4\n<\/div>\n<p><span class=\"line\">\u901a\u8fc7\u6570\u7ec4\u5b57\u9762\u503c<\/span><br \/>\n<span class=\"line\">\u901a\u8fc7\u76f4\u63a5\u521b\u5efaArray\u5b9e\u4f8b(\u4f7f\u7528new\u5173\u952e\u5b57)<\/span><br \/>\n<span class=\"line\">\u901a\u8fc7\u4f7f\u7528Array\u6784\u9020\u51fd\u6570(\u4f7f\u7528new\u5173\u952e\u5b57)<\/span> <\/p>\n<h2 class=\" h2\"> 1)JavaScript\u6570\u7ec4\u6587\u5b57<\/h2>\n<div class=\"desc\">\n  \u4f7f\u7528\u6570\u7ec4\u5b57\u9762\u503c\u521b\u5efa\u6570\u7ec4\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a\n<\/div>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><span> var arrayname=[value1,value2.....valueN];<br> <\/span><\/code><\/pre>\n<\/div>\n<div class=\"desc\">\n  \u5982\u60a8\u6240\u89c1\uff0c\u503c\u5305\u542b\u5728[]\u4e2d\uff0c\u5e76\u7528\uff0c(\u9017\u53f7)\u5206\u9694\u3002\n<\/div>\n<div class=\"desc\">\n  \u8ba9\u6211\u4eec\u770b\u4e00\u4e0b\u5728JavaScript\u4e2d\u521b\u5efa\u548c\u4f7f\u7528\u6570\u7ec4\u7684\u7b80\u5355\u793a\u4f8b\u3002\n<\/div>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><span> &lt;script&gt;<br> var emp=[\"Sonoo\",\"Vimal\",\"Ratan\"];<br> for (i=0;i&lt;emp.length;i++){<br> &nbsp;&nbsp;&nbsp;document.<span class=\"mediumblue\">write<\/span>(emp[i] + \"&lt;br\/&gt;\");<br> }<br> &lt;\/script&gt;<br> <\/span><\/code><\/pre>\n<\/div>\n<div class=\"desc\">\n  .length\u5c5e\u6027\u8fd4\u56de\u6570\u7ec4\u7684\u957f\u5ea6\u3002\n<\/div>\n<div class=\"desc\">\n <strong>\u4e0a\u9762\u793a\u4f8b\u7684\u8f93\u51fa<\/strong>\n<\/div>\n<div class=\"result\">\n <script>\n                    var emp = [\"Sonoo\", \"Vimal\", \"Ratan\"];\n                    for (i = 0; i < emp.length; i++) {\n                        document.write(emp[i] + \"<br \/>\");\n                    }\n                    <\/script>\n<\/div>\n<h2 class=\" h2\"> 2)\u76f4\u63a5\u521b\u5efaJavaScript\u6570\u7ec4(\u65b0\u5173\u952e\u5b57)<\/h2>\n<div class=\"desc\">\n  \u76f4\u63a5\u521b\u5efa\u6570\u7ec4\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a\n<\/div>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><span> var arrayname=new Array();<br> <\/span><\/code><\/pre>\n<\/div>\n<div class=\"desc\">\n  \u5728\u8fd9\u91cc\uff0c<br \/>\n <strong> new\u5173\u952e\u5b57<\/strong>\u7528\u4e8e\u521b\u5efa\u6570\u7ec4\u7684\u5b9e\u4f8b\u3002\n<\/div>\n<div class=\"desc\">\n  \u8ba9\u6211\u4eec\u770b\u770b\u76f4\u63a5\u521b\u5efa\u6570\u7ec4\u7684\u793a\u4f8b\u3002\n<\/div>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><span> &lt;script&gt;<br> var i;<br> var emp = new Array();<br> emp[0] = \"Arun\";<br> emp[1] = \"Varun\";<br> emp[2] = \"John\";<br> for (i=0;i&lt;emp.length;i++){<br> document.<span class=\"mediumblue\">write<\/span>(emp[i] + \"&lt;br&gt;\");<br> }<br> &lt;\/script&gt;<br> <\/span><\/code><\/pre>\n<\/div>\n<div class=\"desc\">\n <strong>\u4ee5\u4e0a\u793a\u4f8b\u7684\u8f93\u51fa<\/strong>\n<\/div>\n<div class=\"result\">\n <script>  \nvar i;  \nvar emp = new Array();  \nemp[0] = \"Arun\";  \nemp[1] = \"Varun\";  \nemp[2] = \"John\";  <\/p>\n<p>for (i=0;i<emp.length;i++){  \ndocument.write(emp[i] + \"<br \/>\");  \n}  \n<\/script>\n<\/div>\n<h2 class=\" h2\"> 3)JavaScript\u6570\u7ec4\u6784\u9020\u51fd\u6570(\u65b0\u5173\u952e\u5b57)<\/h2>\n<div class=\"desc\">\n  \u5728\u8fd9\u91cc\uff0c\u60a8\u9700\u8981\u901a\u8fc7\u5728\u6784\u9020\u51fd\u6570\u4e2d\u4f20\u9012\u53c2\u6570\u6765\u521b\u5efa\u6570\u7ec4\u7684\u5b9e\u4f8b\uff0c\u8fd9\u6837\u6211\u4eec\u5c31\u4e0d\u5fc5\n<\/div>\n<div class=\"desc\">\n  \u4e0b\u9762\u7ed9\u51fa\u4e86\u901a\u8fc7\u6570\u7ec4\u6784\u9020\u51fd\u6570\u521b\u5efa\u5bf9\u8c61\u7684\u793a\u4f8b\u3002\n<\/div>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><span> &lt;script&gt;<br> var emp=new Array(\"Jai\",\"Vijay\",\"Smith\");<br> for (i=0;i&lt;emp.length;i++){<br> document.<span class=\"mediumblue\">write<\/span>(emp[i] + \"&lt;br&gt;\");<br> }<br> &lt;\/script&gt;<br> <\/span><\/code><\/pre>\n<\/div>\n<div class=\"desc\">\n <strong>\u4ee5\u4e0a\u793a\u4f8b\u7684\u8f93\u51fa<\/strong>\n<\/div>\n<div class=\"result\">\n <script>  \nvar emp=new Array(\"Jai\",\"Vijay\",\"Smith\");  \nfor (i=0;i<emp.length;i++){  \ndocument.write(emp[i] + \"<br \/>\");  \n}  \n<\/script>\n<\/div>\n<h2 class=\" h2\"> JavaScript\u6570\u7ec4\u65b9\u6cd5<\/h2>\n<div class=\"desc\">\n  \u8ba9\u6211\u4eec\u770b\u4e00\u4e0bJavaScript\u6570\u7ec4\u65b9\u6cd5\u53ca\u5176\u8bf4\u660e\u5217\u8868\u3002\n<\/div>\n<table>\n<tbody>\n<tr>\n<td>\u65b9\u6cd5<\/td>\n<td>\u8bf4\u660e<\/td>\n<\/tr>\n<tr>\n<td> concat() <\/td>\n<td>\u5b83\u8fd4\u56de\u4e00\u4e2a\u5305\u542b\u4e24\u4e2a\u6216\u591a\u4e2a\u5408\u5e76\u6570\u7ec4\u7684\u65b0\u6570\u7ec4\u5bf9\u8c61\u3002<\/td>\n<\/tr>\n<tr>\n<td> copywithin() <\/td>\n<td>\u5b83\u5c06\u590d\u5236\u7ed9\u5b9a\u6570\u7ec4\u4e2d\u5177\u6709\u5176\u81ea\u5df1\u5143\u7d20\u7684\u90e8\u5206\uff0c\u5e76\u8fd4\u56de\u4fee\u6539\u540e\u7684\u6570\u7ec4\u3002<\/td>\n<\/tr>\n<tr>\n<td> entries() <\/td>\n<td>\u5b83\u521b\u5efa\u4e00\u4e2a\u8fed\u4ee3\u5668\u5bf9\u8c61\u548c\u4e00\u4e2a\u5faa\u73af\uff0c\u5faa\u73af\u904d\u5386\u6bcf\u4e2a\u952e\/\u503c\u5bf9\u3002<\/td>\n<\/tr>\n<tr>\n<td> every() <\/td>\n<td>\u5b83\u786e\u5b9a\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u662f\u5426\u90fd\u6ee1\u8db3\u63d0\u4f9b\u7684\u529f\u80fd\u6761\u4ef6\u3002<\/td>\n<\/tr>\n<tr>\n<td> flat() <\/td>\n<td>\u5b83\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\uff0c\u5176\u4e2d\u5305\u542b\u9012\u5f52\u8fde\u63a5\u7684\u5b50\u6570\u7ec4\u5143\u7d20\uff0c\u76f4\u5230\u6307\u5b9a\u7684\u6df1\u5ea6\u4e3a\u6b62\u3002<\/td>\n<\/tr>\n<tr>\n<td> flatMap() <\/td>\n<td>\u5b83\u901a\u8fc7\u6620\u5c04\u529f\u80fd\u6620\u5c04\u6240\u6709\u6570\u7ec4\u5143\u7d20\uff0c\u7136\u540e\u5c06\u7ed3\u679c\u5c55\u5e73\u4e3a\u65b0\u6570\u7ec4\u3002<\/td>\n<\/tr>\n<tr>\n<td> fill() <\/td>\n<td>\u5b83\u4f7f\u7528\u9759\u6001\u503c\u5c06\u5143\u7d20\u586b\u5145\u5230\u6570\u7ec4\u4e2d\u3002<\/td>\n<\/tr>\n<tr>\n<td> from() <\/td>\n<td>\u5b83\u5c06\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5176\u4e2d\u5305\u542b\u53e6\u4e00\u4e2a\u6570\u7ec4\u5143\u7d20\u7684\u7cbe\u786e\u526f\u672c\u3002<\/td>\n<\/tr>\n<tr>\n<td> filter() <\/td>\n<td>\u5b83\u5c06\u8fd4\u56de\u5305\u542b\u901a\u8fc7\u63d0\u4f9b\u7684\u51fd\u6570\u6761\u4ef6\u7684\u5143\u7d20\u7684\u65b0\u6570\u7ec4\u3002<\/td>\n<\/tr>\n<tr>\n<td> find() <\/td>\n<td>\u5b83\u8fd4\u56de\u7ed9\u5b9a\u6570\u7ec4\u4e2d\u6ee1\u8db3\u6307\u5b9a\u6761\u4ef6\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u503c\u3002<\/td>\n<\/tr>\n<tr>\n<td> findIndex() <\/td>\n<td>\u5b83\u8fd4\u56de\u7ed9\u5b9a\u6570\u7ec4\u4e2d\u6ee1\u8db3\u6307\u5b9a\u6761\u4ef6\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\u503c\u3002<\/td>\n<\/tr>\n<tr>\n<td> forEach() <\/td>\n<td>\u5b83\u4e3a\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\u8c03\u7528\u4e00\u6b21\u63d0\u4f9b\u7684\u51fd\u6570\u3002<\/td>\n<\/tr>\n<tr>\n<td> includes() <\/td>\n<td>\u5b83\u68c0\u67e5\u7ed9\u5b9a\u7684\u6570\u7ec4\u662f\u5426\u5305\u542b\u6307\u5b9a\u7684\u5143\u7d20\u3002<\/td>\n<\/tr>\n<tr>\n<td> indexOf() <\/td>\n<td>\u5b83\u5c06\u641c\u7d22\u7ed9\u5b9a\u6570\u7ec4\u4e2d\u7684\u6307\u5b9a\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u7b2c\u4e00\u4e2a\u5339\u914d\u9879\u7684\u7d22\u5f15\u3002<\/td>\n<\/tr>\n<tr>\n<td> isArray() <\/td>\n<td>\u5b83\u6d4b\u8bd5\u4f20\u9012\u7684\u503c\u662f\u5426\u4e3a\u6570\u7ec4\u3002<\/td>\n<\/tr>\n<tr>\n<td> join() <\/td>\n<td>\u5b83\u5c06\u6570\u7ec4\u7684\u5143\u7d20\u4f5c\u4e3a\u5b57\u7b26\u4e32\u8fde\u63a5\u3002<\/td>\n<\/tr>\n<tr>\n<td> keys() <\/td>\n<td>\u5b83\u5c06\u521b\u5efa\u4e00\u4e2a\u4ec5\u5305\u542b\u6570\u7ec4\u952e\u7684\u8fed\u4ee3\u5668\u5bf9\u8c61\uff0c\u7136\u540e\u904d\u5386\u8fd9\u4e9b\u952e\u3002<\/td>\n<\/tr>\n<tr>\n<td> lastIndexOf() <\/td>\n<td>\u5b83\u5c06\u641c\u7d22\u7ed9\u5b9a\u6570\u7ec4\u4e2d\u7684\u6307\u5b9a\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u6700\u540e\u4e00\u4e2a\u5339\u914d\u9879\u7684\u7d22\u5f15\u3002<\/td>\n<\/tr>\n<tr>\n<td> map() <\/td>\n<td>\u5b83\u4e3a\u6bcf\u4e2a\u6570\u7ec4\u5143\u7d20\u8c03\u7528\u6307\u5b9a\u7684\u51fd\u6570\u5e76\u8fd4\u56de\u65b0\u6570\u7ec4<\/td>\n<\/tr>\n<tr>\n<td> of() <\/td>\n<td>\u5b83\u4ece\u53ef\u53d8\u6570\u91cf\u7684\u53c2\u6570\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5176\u4e2d\u5305\u542b\u4efb\u610f\u7c7b\u578b\u7684\u53c2\u6570\u3002<\/td>\n<\/tr>\n<tr>\n<td> pop() <\/td>\n<td>\u5b83\u5c06\u5220\u9664\u5e76\u8fd4\u56de\u6570\u7ec4\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u3002<\/td>\n<\/tr>\n<tr>\n<td> push() <\/td>\n<td>\u5b83\u5c06\u4e00\u4e2a\u6216\u591a\u4e2a\u5143\u7d20\u6dfb\u52a0\u5230\u6570\u7ec4\u7684\u672b\u5c3e\u3002 <\/td>\n<\/tr>\n<tr>\n<td> reverse() <\/td>\n<td>\u5b83\u53cd\u8f6c\u7ed9\u5b9a\u6570\u7ec4\u7684\u5143\u7d20\u3002<\/td>\n<\/tr>\n<tr>\n<td> reduce(function, initial) <\/td>\n<td>\u5b83\u4e3a\u4ece\u5de6\u5230\u53f3\u7684\u6bcf\u4e2a\u503c\u6267\u884c\u63d0\u4f9b\u7684\u51fd\u6570\uff0c\u5e76\u5c06\u6570\u7ec4\u7f29\u5c0f\u4e3a\u5355\u4e2a\u503c\u3002 <\/td>\n<\/tr>\n<tr>\n<td> reduceRight() <\/td>\n<td>\u5b83\u4e3a\u6bcf\u4e2a\u503c\u4ece\u53f3\u5230\u5de6\u6267\u884c\u63d0\u4f9b\u7684\u529f\u80fd\uff0c\u5e76\u5c06\u6570\u7ec4\u7f29\u5c0f\u4e3a\u5355\u4e2a\u503c\u3002<\/td>\n<\/tr>\n<tr>\n<td> some() <\/td>\n<td>\u5b83\u786e\u5b9a\u6570\u7ec4\u4e2d\u7684\u4efb\u4f55\u5143\u7d20\u662f\u5426\u901a\u8fc7\u5df2\u5b9e\u73b0\u529f\u80fd\u7684\u6d4b\u8bd5\u3002<\/td>\n<\/tr>\n<tr>\n<td> shift() <\/td>\n<td>\u5b83\u5c06\u5220\u9664\u5e76\u8fd4\u56de\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002<\/td>\n<\/tr>\n<tr>\n<td> slice() <\/td>\n<td>\u5b83\u8fd4\u56de\u4e00\u4e2a\u5305\u542b\u7ed9\u5b9a\u6570\u7ec4\u90e8\u5206\u526f\u672c\u7684\u65b0\u6570\u7ec4\u3002<\/td>\n<\/tr>\n<tr>\n<td> sort() <\/td>\n<td>\u5b83\u4ee5\u6392\u5e8f\u987a\u5e8f\u8fd4\u56de\u7ed9\u5b9a\u6570\u7ec4\u7684\u5143\u7d20\u3002<\/td>\n<\/tr>\n<tr>\n<td> splice() <\/td>\n<td>\u5b83\u5411\/\u4ece\u7ed9\u5b9a\u6570\u7ec4\u6dfb\u52a0\/\u5220\u9664\u5143\u7d20\u3002<\/td>\n<\/tr>\n<tr>\n<td> toLocaleString() <\/td>\n<td>\u5b83\u8fd4\u56de\u4e00\u4e2a\u5305\u542b\u6307\u5b9a\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u7684\u5b57\u7b26\u4e32\u3002<\/td>\n<\/tr>\n<tr>\n<td> toString() <\/td>\n<td>\u5b83\u5c06\u6307\u5b9a\u6570\u7ec4\u7684\u5143\u7d20\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u5f62\u5f0f\uff0c\u800c\u4e0d\u4f1a\u5f71\u54cd\u539f\u59cb\u6570\u7ec4\u3002<\/td>\n<\/tr>\n<tr>\n<td> unshift() <\/td>\n<td>\u5b83\u5c06\u5728\u7ed9\u5b9a\u6570\u7ec4\u7684\u5f00\u5934\u6dfb\u52a0\u4e00\u4e2a\u6216\u591a\u4e2a\u5143\u7d20\u3002<\/td>\n<\/tr>\n<tr>\n<td> values() <\/td>\n<td>\u5b83\u5c06\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u8fed\u4ee3\u5668\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u5e26\u6709\u6570\u7ec4\u4e2d\u6bcf\u4e2a\u7d22\u5f15\u7684\u503c\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"JavaScript\u6570\u7ec4zh-cn","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[179],"tags":[],"class_list":["post-2666","post","type-post","status-publish","format-standard","hentry","category-javascript-jc"],"_links":{"self":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/2666"}],"collection":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/comments?post=2666"}],"version-history":[{"count":0,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/2666\/revisions"}],"wp:attachment":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/media?parent=2666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/categories?post=2666"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/tags?post=2666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}