Sentence Capitalization v2

Write a function that accepts a string. The function should capitalize the first letter of each word in the string then return the capitalized string.

Examples
capitalize(‘a short sentence’) => return ‘A Short Sentence
capitalize(‘a lazy fox’) => return ‘A Lazy Fox’
capitalize(‘look, it is working!’) => return ‘Look, It Is Working’

function capitalize(str) {
  let result = str[0].toUpperCase();
  for (let i = 1; i < str.length; i++) {
    if (str[i - 1] === ' ') {
      result += str[i].toUpperCase();
    } else {
      result += str[i];
    }
  }
  return result;
}
}

First we create function capitalize with parameter str and create variable result equal to str[0].toUpperCase(). So we take the first letter and Capitilize.

Then we do for loop starting with 1 looping untill length of the str and for each iteration we add 1;

Inside the loop we check if str[i-1] === ‘ ‘ and if they do we take that letter i and use it like str[i].toUpperCase()

All of these is added into result variable with concatination += str[i].toUpperCase()

Else result is equal to result + str[i] which means there is no empty space so the letters are downcase except the first one.

In the end we return result