Example
let text = (age < 18) ? "Minor" : "Adult";Example
let isMember = true;
let discount = isMember ? 0.2 : 0;Example
let isMember = false;
let discount = isMember ? 0.2 : 0;The conditional operator is a shorthand for writing conditional if...else statements.
It is called a ternary operator because it takes three operands.
Syntax
(
condition
) ?
expression1
expression2Parameters
| Parameter | Description |
|---|---|
| condition | Required. The condition to be tested. An expression that evaluates to true or false . |
| ? | Required. The operator separating the condition from the expressions. |
| expression1 | Required. The value to return if the condition is true . |
| : | Required. The operator separating the expressions. |
| expression2 | Required. The value to return if the condition is false . |
The conditional (ternary) operator is the only JavaScript operator that takes three operands.
Browser Support
() ? x : y is an ES1 feature (JavaScript 1997).
It is fully supported in all browsers:
| Chrome | IE | Edge | Firefox | Safari | Opera |
|---|---|---|---|---|---|
| Yes | Yes | Yes | Yes | Yes | Yes |