Master In-Demand Tech. Get Paid

Count Words in a Sentence

Given a sentence string s, count how many words it contains. Words are separated by spaces.

Difficulty:

JavaScript Solution

function countWords(s) {
  return s.trim().split(/\s+/).length;
}

Explanation: We split the sentence by whitespace to count words accurately.

⏱ O(n) | 💾 O(n)

Console

🎬 Share Your Coding Journey