# What is a ternary operator (?:) in JavaScript?

JavascriptWeb DevelopmentFront End Technology

The conditional operator or ternary operator first evaluates an expression for a true or false value and then executes one of the two given statements depending upon the result of the evaluation.

S.No
Operator & Description
1
? : (Conditional )
If Condition is true? Then value X: Otherwise value Y

## Example

You can try to run the following code to understand how Ternary Operator works in JavaScript

Live Demo

<html>
<body>
<script>
var a = 10;
var b = 20;
var linebreak = "<br />";

document.write ("((a > b) ? 100 : 200) => ");
result = (a > b) ? 100 : 200;
document.write(result);
document.write(linebreak);

document.write ("((a < b) ? 100 : 200) => ");
result = (a < b) ? 100 : 200;
document.write(result);
document.write(linebreak);
</script>
</body>
</html>
Published on 23-Jan-2018 12:52:41