String.prototype.camelCase = function () {



    let arr = string.split('');

    console.log(arr);


    for (let i = 0; i < arr.length; i++) {

        if (i === 0) {

          arr[i] = arr[i].toUpperCase();

        } else if (arr[i] === ' ') {

            arr[i + 1] = arr[i + 1].toUpperCase();

            arr.splice(i, 1);

        }

    }


    return arr.join('');


  }


//  console.log(String.prototype.camelCase("test case"));

console.log("test case".camelCase());