JSFiddle - React, Tailwind, and code Playground

by hamix

JavaScript

var specificletter= function(keys, str){
    for (i = 0; i < str.length; i++) {
        var char= str.charAt(i);
        if(!keys[char]) keys[char]= 0;
        keys[char]++;
    }
    for (p in keys)
        alert(p+":"+keys[p]);
};
var  samKeys={"a": 0,"e": 0,"i": 0,"l": 0,"m": 0,"n": 0,"o": 0,"r": 0,"s": 0,"t": 0,"y": 0};
specificletter(samKeys,"hamix");