Count number of occurrences for each char in a string

Question

I want to count the number of occurrences of each character in a given string using JavaScript.

For example:

var str = \"I want to count the number         


        

Answer 1

let str = "atul kumar srivastava";
let obj ={};
for(let s of str)if(!obj[s])obj[s] = 1;else obj[s] = obj[s]  + 1;
console.log(obj)