Capitalize Words In JS

Here’s a function that takes a string as input and returns a new string with every word’s first letter capitalized:

 

function capitalizeEveryWord(str) {
  // Split the string into an array of words
  const words = str.split(' ');

  // Loop through the array of words
  for (let i = 0; i < words.length; i++) {
    // Capitalize the first letter of the current word
    words[i] = words[i].charAt(0).toUpperCase() + words[i].slice(1);
  }

  // Join the array of words back into a single string
  return words.join(' ');
}

For example:

capitalizeEveryWord('hello world'); // returns "Hello World"