capitalize first letter of word javascript code example

Example 1: javascript capitalize words

//capitalize only the first letter of the string. 
function capitalizeFirstLetter(string) {
    return string.charAt(0).toUpperCase() + string.slice(1);
}
//capitalize all words of a string. 
function capitalizeWords(string) {
    return string.replace(/(?:^|\s)\S/g, function(a) { return a.toUpperCase(); });
};

Example 2: javascript capitalize first letter

const lower = 'this is an entirely lowercase string';
const upper = lower.charAt(0).toUpperCase() + lower.substring(1);

Example 3: capitalize first carater js

String.prototype.capitalize = function() {
  return this.charAt(0).toUpperCase() + this.slice(1)
}

Example 4: capitalize first letter of each word javascript

const titleCase = function(text) {
  let newText = '';
  text = text.toLowerCase();
  text = text.charAt(0).toUpperCase() + text.slice(1);
  for (let i = 0; i < text.length; i++) {
    if (text[i] === ' ') {
      newText += ' ' + text[i+1].toUpperCase();
      i++;
    } else {
      newText += text[i];
    }
  }
  return newText;
}