Find duplicate characters

Find duplicate characters

by Arvind Pal

JavaScript

var obj = {};
function isContainsDulicate(text){
var isduplicate = false;
	for(var i = 0; i<text.length; i++){
  	if(obj[text[i]] === undefined){
    	obj[text[i]] = 0;
    } else {
    isduplicate = true;
    obj[text[i]]++;
    }
  }
	console.log("obj===>",obj);
  return isduplicate;
}
var textToTest = "Arvind";
if(isContainsDulicate(textToTest)){
	console.log("duplicate found");
} else {
	console.log('all uniques');
}