JavaScript Unary Operators

JavaScript Comma Operator

Last Updated : 23 Nov, 2024

JavaScript Comma Operator mainly evaluates its operands from left to right sequentially and returns the value of the rightmost operand.

JavaScript

let x = (1, 2, 3);
console.log(x);

Output

Here is another example to show that all expressions are actually executed.

JavaScript

let a = 1, b = 2, c = 3;

let res = (a++, b++, c++);

console.log(res);
console.log(a, b, c);

Output

3
2 3 4

Here is an example with function calls.

javascript

function Func1() {
    console.log('one');
    return 'one';
}
function Func2() {
    console.log('two');
    return 'two';
}
function Func3() {
    console.log('three');
    return 'three';
}

// Three expressions are
// given at one place
let x = (Func1(), Func2(), Func3());

console.log(x);

Output

one
two
three
three

JavaScript Unary Operators

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