Calculates the most repeated characters and occurrences of a string

Method One:

<script type= "Text/javascript" >var str = ' caibaojian.com ', obj=[];for (var i = 0; i< str.length; i++) {var key = str [I];if (!obj[key]) {Obj[key] = 1;} Else{obj[key] + +;}} var max = -1;var Max_key = "; var key;for (key in obj) {if (Max<obj[key]) {max=obj[key];max_key = key;}} Console.log (max_key+ "is a maximum number of characters and occurs" +max);</script>

Method Two:

var str = "caibaojian.com"; var arr = Str.split (""); var obj = {};var Objarr = [];for (var i=0,j; J=arr[i]; i++) {if (!obj[j]) obj[j]=0;objarr[++obj[j]]=j;} document.write (objarr[objarr.length-1]+ "= =" + (objarr.length-1));

Method Three:

var str = "caibaojian.com"; var maxLength = 0; Name a variable to place the highest number of occurrences of the letter and initialize it to 0var result = '; Name a variable to place the result input while (str! = ") {//loop iteration begins and determine if the string is empty oldstr = str;//Assign the original string variable to the new variable getstr = STR.SUBSTR (0,1);//Subs with string The TR method gets the first character (first letter) of eval ("str = str.replace (/" +getstr+ "/g,") "); Details such as supplement can also be written as str = str.replace (new RegExp (Getstr, ' G '), ""); if (Oldstr.length-str.length > MaxLength) {// Determines the length of the original string minus the substitution after the string length is greater than the maximum string length that appears before maxlength = Oldstr.length-str.length; Subtract two string lengths to get the maximum string length result = getstr + "=" + maxLength//returns the maximum string result (letters, occurrences)}}document.write (Result)//Popup results

Calculates the most repeated characters and occurrences of a string