JavaScript Not equal Operator (!= & !==)is a comparison operator used to check the value of two operands is equal or not. It returns true if the value of two operands is not equal.
x !== yThe strict inequality operator (!==) checks whether its two operands are not equal, returning a Boolean result.
x != yThe inequality operator (!=) checks whether its two operands are not equal, returning a Boolean result
JavaScript not equal
A simple example code uses the not-equal operator in the If statement’s condition.
<!DOCTYPE html>
<html lang="en">
<body>
<script>
var x = 'apple';
var y = 'banana';
if (x != y) {
console.log('x and y are not equal.');
} else {
console.log( 'x and y are equal.');
}
</script>
</body>
</html>Output:
Inequality operator examples
console.log(1 != 1); // false
console.log('hello' != 'hello'); // false
console.log('1' != 1); // false
console.log(0 != false); // falseStrict inequality operator examples
console.log(1 !== 1); // false
console.log('hello' !== 'hello'); // false
console.log('1' !== 1); // true
console.log(0 !== false); // trueSome Comparison Operators:
- Equal to (==) – Check if the two values are equal.
- Strict equal to (===) – Checks are two values that are equal and of similar type.
- Greater than (>) – Checks if the value on the left is greater than the value on the right.
- Greater than or equal to (>=) – Checks if the value is greater than or equal to the value on the right.
- Less than (<) – Checks if the value on the left is less than the value on the right.
- Less than or equal to (<=) – Checks if the value is less than or equal to the value on the right
Do comment if you have any doubts or suggestions on this Js operator.
Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version