What is Question Mark in JavaScript?

Question mark (?) paired with  colon ( : ) is a ternary operator in javascript.

condition ? code A : code B

As name suggest, ternary operator syntax has three operands.

First is a condition followed by a question mark (?). We test this condition, if it is true or false.

If the condition is true, code A is run.

If the condition is false, code B is run.

Ternary operator let’s you write if..else statement in a single line of code.

if..else statement

let superhero = ‘goku’;

if(superhero === ‘goku’){





Ternary operator

let superhero = ‘goku’;

let comic = superhero === “goku” ? ‘anime’ : ‘comic’;