JavaScript Bitwise Operators - Real World Examples (snippets) Number's Parity Detection with Bitwise AND
Example
Instead of this (unfortunately too often seen in the real code) "masterpiece":
function isEven(n) {
return n % 2 == 0;
}
function isOdd(n) {
if (isEven(n)) {
return false;
} else {
return true;
}
}
You can do the parity check much more effective and simple:
if(n & 1) {
console.log("ODD!");
} else {
console.log("EVEN!");
}
(this is actually valid not only for JavaScript)
