Assignment operators assign values to JavaScript variables.
| Operator | Example | Same As | Demonstration |
|---|---|---|---|
| = | x = y | x = y | The assignment operator assigns a value to a variable:
var x = 10; (The value of x is 10) |
| += | x += y | x = x + y | The addition assignment operator adds a value to a variable:
var x = 10; x += 5; (The value of x is 15) |
| -= | x -= y | x = x - y | The subtraction assignment operator subtracts a value from a variable:
var x = 10; x -= 5; (The value of x is 5) |
| *= | x *= y | x = x * y | The multiplication assignment operator multiplies a value with a variable:
var x = 10; x *= 5; (The value of x is 50) |
| /= | x /= y | x = x / y | The division assignment operator divides a variable:
var x = 10; x /= 5; (The value of x is 2) |
| %= | x %= y | x = x % y | The modulus assignment operator assigns a remainder to a variable:
var x = 10; x %= 5; (10 ÷ 5 = 2 means nothing is leftover, so the value of x is 0) |
