两个数组是否相似

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* =====================================================
* 请在index.html文件中，编写arraysSimilar函数，实现判断传入的两个数组是否相似。具体需求：
* 1. 数组中的成员类型相同，顺序可以不同。例如[1, true] 与 [false, 2]是相似的。
* 2. 数组的长度一致。
* 3. 类型的判断范围，需要区分:String, Boolean, Number, undefined, null, 函数，日期, window.
*
* 当以上全部满足，则返回"判定结果:通过"，否则返回"判定结果:不通过"。
* =====================================================
*/

/*
* param1 Array
* param2 Array
* return true or false
*/
function arraysSimilar(arr1, arr2){
if (arr1 instanceof Array && arr2 instanceof Array ) { //先判断传入的是否是数组
if (arr1.length == arr2.length) { //判断数组长度
console.log("same-length");
console.log(arr1);
console.log(arr2);
//开始判断数组内部是否相似
return sameLengthArraysSimilar(arr1, arr2);
} else{
//两个数组长度不同返回false
return console.log(false);
}
} else {
//传入的参数不是数组返回false
return false;
}
}

/**
* 判断两个等长的数组内部是否相似
* 遍历数组
* arr1中元素各种类型出现的个数是否和arr2中元素各种类型出现的个数相同
* @param {Array} arr1 数组1
* @param {Array} arr2 数组2
* @return {true,false}
*/

function sameLengthArraysSimilar(arr1,arr2) {
var numInArr1 = 0;
var numInArr2 = 0;
var booleanInArr1 = 0;
var booleanInArr2 = 0;
var funInArr1 = 0;
var funInArr2 = 0;
var undefinedInArr1 = 0;
var undefinedInArr2 = 0;
var stringInArr1 = 0;
var stringInArr2 = 0;
var nullInArr1 = 0;
var nullInArr2 = 0;
var dateInArr1 = 0;
var dateInArr2 = 0;
var windowInArr1 = 0;
var windowInArr2 = 0;
//数组 buer 函数 undef str null data window
for (var i = 0; i < arr1.length; i++) {
if(typeof arr1[i] === ‘number‘ ){
numInArr1 ++;
} else if(typeof arr1[i] === ‘boolean‘){
booleanInArr1 ++;
} else if(typeof arr1[i] === ‘function‘){
funInArr1 ++;
} else if(typeof arr1[i] === ‘undefined‘){
undefinedInArr1 ++;
} else if(typeof arr1[i] === ‘string‘){
stringInArr1 ++;
} else if(typeof arr1[i] ===‘object‘){
if(Object.prototype.toString.apply(arr1[i]) === ‘[object Null]‘){
nullInArr1 ++;
} else if(Object.prototype.toString.apply(arr1[i]) === ‘[object Date]‘){
dateInArr1 ++;
} else if(Object.prototype.toString.apply(arr1[i]) === ‘[object global]‘){
windowInArr1 ++;
}
}

if(typeof arr2[i] === ‘number‘){
numInArr2 ++;
} else if(typeof arr2[i] === ‘boolean‘){
booleanInArr2 ++;
} else if(typeof arr2[i] === ‘function‘){
funInArr2 ++;
} else if(typeof arr2[i] === ‘undefined‘){
undefinedInArr2 ++;
} else if(typeof arr2[i] === ‘string‘){
stringInArr2 ++;
} else if(typeof arr2[i] ===‘object‘){
if(Object.prototype.toString.apply(arr2[i]) === ‘[object Null]‘){
nullInArr2 ++;
} else if(Object.prototype.toString.apply(arr2[i]) === ‘[object Date]‘){
dateInArr2 ++;
} else if(Object.prototype.toString.apply(arr2[i]) === ‘[object global]‘){
windowInArr2 ++;
}
}
}
if(numInArr1 == numInArr2 && booleanInArr1==booleanInArr2 && funInArr1==funInArr2 && undefinedInArr1==undefinedInArr2 && stringInArr1==stringInArr2 && nullInArr1==nullInArr2 && dateInArr1==dateInArr2 && windowInArr1==windowInArr2){
console.log(‘================================true‘);
return true;
}else{
console.log(‘================================false‘);
return false;
}
}

两个数组是否相似

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原文地址：http://www.cnblogs.com/fenglongtao/p/5858459.html