freeCodeCamp/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/title-case-a-sentence.english.md

id, title, isRequired, challengeType

id	title	isRequired	challengeType
ab6137d4e35944e21037b769	Title Case a Sentence	true	5

Description

Return the provided string with the first letter of each word capitalized. Make sure the rest of the word is in lower case. For the purpose of this exercise, you should also capitalize connecting words like "the" and "of". Remember to use Read-Search-Ask if you get stuck. Write your own code.

Instructions

Tests

tests:
  - text: <code>titleCase("I&#39;m a little tea pot")</code> should return a string.
    testString: assert(typeof titleCase("I'm a little tea pot") === "string", '<code>titleCase("I&#39;m a little tea pot")</code> should return a string.');
  - text: <code>titleCase("I&#39;m a little tea pot")</code> should return <code>I&#39;m A Little Tea Pot</code>.
    testString: assert(titleCase("I'm a little tea pot") === "I'm A Little Tea Pot", '<code>titleCase("I&#39;m a little tea pot")</code> should return <code>I&#39;m A Little Tea Pot</code>.');
  - text: <code>titleCase("sHoRt AnD sToUt")</code> should return <code>Short And Stout</code>.
    testString: assert(titleCase("sHoRt AnD sToUt") === "Short And Stout", '<code>titleCase("sHoRt AnD sToUt")</code> should return <code>Short And Stout</code>.');
  - text: <code>titleCase("HERE IS MY HANDLE HERE IS MY SPOUT")</code> should return <code>Here Is My Handle Here Is My Spout</code>.
    testString: assert(titleCase("HERE IS MY HANDLE HERE IS MY SPOUT") === "Here Is My Handle Here Is My Spout", '<code>titleCase("HERE IS MY HANDLE HERE IS MY SPOUT")</code> should return <code>Here Is My Handle Here Is My Spout</code>.');

Challenge Seed

function titleCase(str) {
  return str;
}

titleCase("I'm a little tea pot");

Solution

function titleCase(str) {
  return str.split(' ').map(word => word.charAt(0).toUpperCase() + word.substring(1).toLowerCase()).join(' ');
}

titleCase("I'm a little tea pot");