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Javascript remove custom array deletion method
- 高洛峰Original
- 2017-01-20 11:04:321535browse
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Javascript自定义数组删除方法remove()</title>
<script type="text/javascript">
Array.prototype.remove=function(dx){
if(isNaN(dx)||dx>this.length){return false;}
for(var i=0,n=0;i<this.length;i++){
if(this[i]!=this[dx]){
this[n++]=this[i]
}
}
this.length-=1
}
function f(){
var str = "001|002|003";//
var arr = str.split("|");
alert("删除前数组长度：" + arr.length);
for(var i=0;i<arr.length;i++){
alert(arr[i]);
}
arr.remove(1);//javascript本来是不包含些函数的。
alert("删除后数组长度：" + arr.length);
for(var i=0;i<arr.length;i++){
alert(arr[i]);
}
}
</script>
</head>
<body>
<input type="button" onclick="f();" value="ok" />
</body>
</html>
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