captilize each letter of word in javascript code example

Example 1: capitalize first letter javascript

function capitalizeFirstLetter(string) {
  return string.charAt(0).toUpperCase() + string.slice(1);
}

console.log(capitalizeFirstLetter('foo bar bag')); // Foo

Example 2: javascript name capitalization

function capitalizeName(name) {
  return name.replace(/\b(\w)/g, s => s.toUpperCase());
}