One-liner to check if a number is even or odd in JavaScript

Here’s a one-liner in JavaScript to check if a number is even or odd:

num % 2 === 0 ? "even" : "odd";

Replace num with the actual number you want to check. This expression uses the ternary operator (?) to check if the remainder of num divided by 2 is equal to 0. If it is, the expression returns "even", otherwise it returns "odd".

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