课程 \
JavaScript深入浅出
1-6 编程练习
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb18030">
<title>Untitled Document</title>
</head>
<body>
<script type="text/javascript">
/*
* param1 Array
* param2 Array
* return true or false
*/
function arraysSimilar(arr1, arr2){
if(typeof(arr1) != "Array" || typeof(arr2) != "Array")
return false;
if(arr1.length != arr2.length)
return false;
else if(arr1.length == arr2.length && arr1.length == 0)
return true;
var arr1Types = getTypes(arr1);
var arr2Types = getTypes(arr2);
var arr1TypesCount = Object.keys(arr1Types).length;
var arr2TypesCount = Object.keys(arr2Types).length;
// 判断类型个数是否一致
if(arr1TypesCount!=arr2TypesCount) return false;
for(var item in arr1Types){
if(!arr2Types[item]) return false;
}
return true;
}
function getTypes(arr){
var types = {};
for(var a1 of arr){
if(typeof(a1)!="object"){
types[typeof(a1)] = typeof(a1);
}else{
// 如果是object
var temp = Object.prototype.toString.apply(a1);
switch(temp){
case "[object Array]":
temp = "array";
break;
case "[object Function]":
temp = "function";
break;
case "[object Date]":
temp = "date";
break;
case "[object Window]":
temp = "window";
break;
case "[object Undefined]":
temp = "undefined";
break;
case "[object Null]":
temp = "null";
break;
case "[object Object]":
// 考虑仅为object的情况
temp = "object";
break;
}
types[temp] = temp;
}
}
return types;
}
</script>
<script src="testData.js"></script>
</body>
</html>
2019-03-05
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