Answer by Kamal for How to count string occurrence in string?

var countInstances = function(body, target) {  var globalcounter = 0;  var concatstring  = '';  for(var i=0,j=target.length;i<body.length;i++){    concatstring = body.substring(i-1,j);    if(concatstring === target){       globalcounter += 1;       concatstring = '';    }  }  return globalcounter;};console.log(   countInstances('abcabc', 'abc')   ); // ==> 2console.log(   countInstances('ababa', 'aba')   ); // ==> 2console.log(   countInstances('aaabbb', 'ab')   ); // ==> 1