💾modulo(a, b)
modulo
JS ⟩ operator ⟩ arithmetic ⟩ modulo
modulo(a, b) returns the modulo of a / b. (b decides the sign of the modulo)
(👉 see remainder vs. modulo vs. mod for more info)
replit: modulo(a,b) vs. mod(a,b)
// ⭐️ modulo: r = a - b*q
// ------------------------
// • r has same sign as b.
// (that is, `b` decides the "sign" of the result)
function modulo(a, b) {
return ((a % b) + b) % b
}
💈範例:
// remainder (a % b)
//┌─── `a` decides the "sign" ⭐️
//│
5 % 3, // 2
5 % -3, // 2
-5 % 3, // -2
-5 % -3, // -2
// ⭐️ modulo(a, b)
// ┌─── `b` decides the "sign" ⭐️
// │
modulo( 5, 3), // 2
modulo( 5, -3), // -1
modulo(-5, 3), // 1
modulo(-5, -3), // -2
modulo(6.4, 2.3), // 1.8000000000000007
// mod(a, b) (in math)
// ┌─── always >= 0 ⭐️
// │
mod( 5, 3), // 2
mod( 5, -3), // 2
mod(-5, 3), // 1
mod(-5, -3), // 1
Last updated
Was this helpful?