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What are Conditional Operators in JavaScript?

The conditional 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.

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

Example

Try the following code to understand how the Conditional 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>
      <p>Set the variables to different values and different operators and then try...</p>
   </body>
</html>
Updated on 07-Jan-2020 07:00:29

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