JavaScript Ternary Operator
JavaScript Ternary Operator (Conditional Operator) is a concise way to write a conditional (if-else) statement. Ternary Operator takes three operands i.e. condition, true value and false value. In this article, we are going to learn about Ternary Operator.
Examples
Input: let result = (10 > 0) ? true : false;
Output: true
Input: let message = (20 > 15) ? "Yes" : "No";
Output: Yes
Syntax
condition ? trueExpression : falseExpression
Operands
- condition: Expression to be evaluated which returns a boolean value.
- value if true: Value to be executed if the condition results in a true state.
- value if false: Value to be executed if the condition results in a false state.
Characteristics of Ternary Operator
- The expression consists of three operands: the condition, value if true, and value if false.
- The evaluation of the condition should result in either a true/false or a boolean value.
- The true value lies between “?” & “:” and is executed if the condition returns true. Similarly, the false value lies after “:” and is executed if the condition returns false.
Example 1: Below is an example of the Ternary Operator.
Javascript
function gfg() {
let PMarks = 40
let result = (PMarks > 39) ?
"Pass" : "Fail" ;
console.log(result);
}
gfg();
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Example 2: Below is an example of the Ternary Operator.
Javascript
function gfg() {
let age = 60
let result = (age > 59) ?
"Senior Citizen" : "Not a Senior Citizen" ;
console.log(result);
}
gfg();
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Example 3: Below is an example of nested ternary operators.
Javascript
function gfg() {
let marks = 95;
let result = (marks < 40) ? "Unsatisfactory" :
(marks < 60) ? "Average" :
(marks < 80) ? "Good" : "Excellent" ;
console.log(result);
}
gfg();
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Last Updated :
27 Feb, 2024
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