javascript - FOR LOOP in Angular Service NOT Working - While Loop Works -


i've worked around problem while loop thought i'd explain here - because seems odd

i tried iterating through string in service using loop, cannot work

when service defined this

.service('xtratxt', function()  {    var x = 0;    var = "";     this.convert = function(srctxt)    {      this.a = "";      this.x = 0;      (this.x=0; this.x++; this.x<srctxt.length)      {        this.a = ans + "x";      }      return ans;    };  })

if call in controller 

$scope.newvalu = xtratxt.convert("hello");

i should string of x's eg xxxxx instead empty string ""

if change while loop - no problems works treat

anyone know why ?

i no errors in console either. afaik doesn't seem enter loop @ all

this.convert = function (srctxt) {     var = "", x = 0, ans = '';     (x = 0; x < srctxt.length; x++) {         ans += "x";     }     return ans; };

shorter version

var str = 'abcde'; str.replace(/\w/gi, 'x');

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