modulus js
//We are trying to find a table for my speed dating group to sit at, that is the most economical for the restaurant. How many options do I have?
const tableNumbers = [5, 14, 7, 10, 20, 11, 12, 15, 3]
for (let i =0; i < tableNumbers.length; i++) {
//if the tableNumbers length can be divided by 2 (%) = and leavs a remainder of 0
if (tableNumbers[i] % 2 === 0) {
console.log(tableNumbers[i])
}
}javascript remainder function
12 % 5 // 2js modulo
// The JS % operater is REMAINDER not MODULO
// For modulo behaviour use
function mod(n, m) {
return ((n % m) + m) % m;
}modulus js
console.log(10%3);
//returns 1 (the remainder of 10/3)js modulo
// find even(/odd)
n%2===0
// find integer
//eg x/v isInteger
x%y === 0mod 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); // 1
mod(0, 1, 5); // 5
mod(0, -1, 5); // 0
mod(-2, -1, 5); // 5Copyright © 2021 Codeinu
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