<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb18030">
<title>Untitled Document</title>
</head>
<body>
<script type="text/javascript">
/*string boolean. number,underfined null function date window
* param1 Array
* param2 Array
* return true or false
*/
function arraysSimilar(arr1, arr2){
if(!(arr1 instanceof Array) || !(arr2 instanceof Array)){
return false
}
if(arr1.length!==arr2.length){
return false
}
var type=["string",'boolean','numbwe','undefined','null','function','date','window'];
var i = 0,
t1,t2,
countMap1={},
countMap2={};
for (i;i<arr1.length;i++){
t1=typeOf(arr1[i]);
t2=typeOf(arr2[i]);
if(countMap1[t1]){
countMap1[t1]++;
} else{
countMap1[t1]=1
}
if(countMap2[t2]){
countMap2[t2]++;
} else{
countMap2[t2]=1
}
}
function typeOf(ele){
var r;
if(ele===null) r="null";
else if(ele===window) r='window';
else if(ele instanceof Date) r='date';
else if(ele instanceof Array) r='array';
else r= typeof ele
return r;
}
for(i=0;i<type.length;i++){
if(countMap1[type[i]]!==countMap2[type[i]]){
return false
}
}
return true
}
</script>
<script src="testData.js"></script>
</body>
</html>明白了~谢谢
你自己打的代码 自己都不知道吗 看判断条件，这两个数组，内容长度，内容类型，内容类型出现次数不同则为false；arr1=[1,'str',[1,2]];arr2=[1,[1,2],'str2']这俩就true，把arr2中的1 改为‘a'就为false了