TIL of returning true/false directly

POSTED ON: Feb 14, 2022

I've been guilty of this.

<?php
function checkIsYouth($age) {
    if ($age >= 15 && $age <= 24) {
        return true;
    }

    return false;
}

So let's break it down!

If the age is:

A one-line way that expresses the same thing is:

<?php
function checkIsYouth($age) {
    return $age >= 15 && $age <= 24;
}

This works because it's going to return either true or false anyways. Might as well lift it to the return statement.

TIL Double Exclamation shorthand for booleans

JavaScript (and TypeScript) lets you convert a non-Boolean value to Boolean using the double exclamation shorthand. '!!'

TIL a easier way to check for multiple OR statements

Essentially, it's turning a multiple conditional into a array, then array to see if it matches.

TIL of returning true/false directly

return true or false directly bruh