Below is a list of compound operators in JavaScript:
+= is compound addition operator.
-= is compound subtraction operator.
*= is compound multiplication operator.
/= is compound division operator.
%= is compound modulo operator.
**= is compound exponential operator.
This operator adds the right-side operand with the left-side operand and assigns the result to the left operand.
x += y
let x = 10;x += 5;console.log(x);
Line 1: We declare the variable x and store 10 in it.
Line 2: We add 5 to x and then assign the result to the x.
Line 3: We print the value of x.
This operator subtracts the right-side operand from the left-side operand and then assigns the result to the left operand.
x -= y
let x = 10;x -= 5;console.log(x);
Line 1: We declare the variable x and store 10 into it.
Line 2: We subtract 5 from x and assign the result to x.
Line 3: We print the value of x.
This operator multiplies the right-side operand with left side operand and then assigns the result to the left operand.
x *= y
let x = 10;x *= 5;console.log(x);
Line 1: We declare the variable x and store 10 into it.
Line 2: We multiply 5 with x and then assign the result to the x.
Line 3: We print the value of x.
This operator divides the left operand with the right operand and then assigns it to the left operand.
x /= y
let x = 10;x /= 5;console.log(x);
Line 1: We declare the variable x and store 10 into it.
Line 2: We divide x with 5 and then assign the result to the x.
Line 3: We print the value of x.
This operator takes modulo after dividing the left operand with the right operand and then assigns the result to the left operand.
x %= y
let x = 10;x %= 5;console.log(x);
Line 1: We declare the variable x and store 10 into it.
Line 2: We divide x with 5 and take modulo and then assign the result to the x.
Line 3: We print the value of x.
This operator calculates the exponent (raised power) value using operands and then assigns the value to the left operand.
x **= y
let x = 10;x **= 5;console.log(x);
Line 1: We declare the variable x and store 10 into it.
Line 2: We multiply the value of x with the value of x five times and then store the result to x.
Line 3: We print the value of x.
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