[Codewars] Break camelCase (6 kyu) / JavaScript

https://www.codewars.com/kata/5208f99aee097e6552000148

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DESCRIPTION:

Complete the solution so that the function will break up camel casing, using a space between words.

 

Example

"camelCasing"  =>  "camel Casing"
"identifier"   =>  "identifier"
""             =>  ""

 

코드

// complete the function
function solution(string) {
  let result = "";
  for(let x of string){
    if(x === x.toUpperCase()) result += " ";
    result += x;
  }
  return result;
}