js mod remainder code example
Example: mod remainder js
function mod(n, a, b) {
n = n | 0;
a = a | 0;
b = b | 0;
let rem;
if (a < 0 || b < 0) {
const places = (b - a);
rem = (n - a) % (places + 1);
rem = rem < 0 ? (rem + (places + 1)) : rem === 0 ? 0 : rem;
return rem - (places - b);
}
if (n === b) return n;
if (n === b + 1) return a;
if (n === a - 1) return b;
rem = n % (b || 1);
rem = rem < a ? (rem + b) : rem === 0 ? 0 : rem;
return rem;
}
mod(1, 1, 5);
mod(0, 1, 5);
mod(0, -1, 5);
mod(-2, -1, 5);