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JavaScript simple implementation of the two array similarity test

Source: Internet
Author: User
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<!DOCTYPE HTML Public "-//W3C//DTD XHTML 1.0 transitional//en" "http://www.w3.org/TR/xhtml1/DTD/ Xhtml1-transitional.dtd "><HTMLxmlns= "http://www.w3.org/1999/xhtml"Xml:lang= "en"><Head>    <Metahttp-equiv= "Content-type"content= "Text/html;charset=utf-8">    <title>JS detects if two arrays are similar</title></Head><Body>    <Script>        //the member types in the array are the same, and the order can be different. For example [1, True] is similar to [FALSE, 2].          //the length of the array is consistent.         //the type of judgment range that needs to be distinguished: String, Boolean, number, undefined, null, function, date, window.        functionarrayssimilar (arr1, arr2) {//Judging Boundaries            if (!(arr1instanceofArray)|| !(arr2instanceofArray)) {                return false; }            //Judging length            if(Arr1.length!=arr2.length)return false; varI= 0, N=Arr1.length, CountMap1={}, CountMap2={}, T1, T2, TYPES= ['string', 'Boolean', ' Number', 'undefined', NULL, 'function', 'Date', 'window'];  for(; I<N; 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; }            }            functiontypeOf (ele) {varR; if(Ele=== NULL) R= 'NULL'; Else if(EleinstanceofArray) R= 'Array'; Else if(Ele===window) R= 'window'; Else if(EleinstanceofDate) R= 'Date'; ElseR= typeofEle; returnR; }             for(i= 0; I<types.length; I++) {                if(Countmap1[types[i]]!=Countmap2[types[i]])return false; }            return true; } document.write (Arrayssimilar ([1,true], [false, 2])); </Script></Body></HTML>
The member types in the array are the same, and the order can be different. For example [1, True] with [false, 2] is similar to the length of the array of the judging range of the same type, need to differentiate: String, Boolean, number, undefined, null, function, date, window.

JavaScript simple implementation of the two array similarity test

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