javascript数组克隆简单实现方法
本文实例讲述了javascript数组克隆简单实现方法。分享给大家供大家参考，具体如下：
<html>
<head>
<metahttp-equiv="Content-Type"content="text/html;charset=gb2312">
<title>新建网页1</title>
</head>
<body>
<scriptlanguage=javascript>
vara=['a','b','c','d','e','f'];
varb=a.concat();
b.push('testisok!');
alert(b.join(','));
alert(a.join(','));
</script>
</body>
</html>
毛票票小编补充
TheJavaScript
Toclonethecontentsofagivenarray,allyouneedtodoiscallslice,providing0asthefirstargument:
varclone=myArray.slice(0);
Thecodeabovecreatescloneoftheoriginalarray;keepinmindthatifobjectsexistinyourarray,thereferencesarekept;i.e.thecodeabovedoesnotdoa"deep"cloneofthearraycontents.Toaddcloneasanativemethodtoarrays,you'ddosomethinglikethis:
Array.prototype.clone=function(){
returnthis.slice(0);
};
Andthereyouhaveit!Don'titerateoverarraystoclonethemifallyouneedisanaiveclone!
希望本文所述对大家JavaScript程序设计有所帮助。