Bit Checker

/* Write a JavaScript function bitChecker(number) that finds if the bit 3 an integer number
(counting from 0) is 1. Write JS program checkingBits.js to check a few numbers.
The result (true or false) should be printed on the console. */

"use strict";

function bitChecker(number) {
    return !!(number & 8);
}

console.log(bitChecker(1));
console.log(bitChecker(333));
console.log(bitChecker(425));
console.log(bitChecker(2567564754));