Lesson #2: string manipulation and counting

strings.js

//reverse characters in string
console.log('test string'.split('').reverse().join('')); // output: gnirts tset 

// count characters in a string
function Char_Counts(str1) {
 var uchars = {};
 str1.replace(/\S/g, function(l){
    uchars[l] = (isNaN(uchars[l]) ? 1 : uchars[l] + 1);
 });
  
 return uchars;
}

console.log(Char_Counts("test string"));