Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

JavaScript JavaScript Basics (Retired) Working With Numbers Using Math Methods

Samantha Atkinson
Samantha Atkinson
Front End Web Development Techdegree Student 36,725 Points

Why is there no semicolon after the value 37.5. I thought all variables have to end with a semicolon?

The first variable set in this Challenge, doesn't have a semicolon before I even start the challenge. Am I suppose to add it or is it a mistake?

var temperature = 37.5
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>JavaScript Basics</title>
<script src="script.js"></script>

5 Answers

You are right. It's mistake but... JS-engine "under the hood" automatically push semicolons and there is a great problem to not put it by yourself. Classical example: "What will function return?"

function test() {

It will return "undefined". Because JS-engine of your browser will put ";" after "return" statement automatically.

Samantha Atkinson There is a "Best Answer" tag below the answer. You click that and it marks the answer as Best Answer.

You are welcome. Just mark this question as answered. =)