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@hridel/modulo

v1.2.0

Published

A robust modular arithmetic utility for JavaScript, handling both positive and negative integers with ease. Ensure consistent, non-negative results for your modulo operations. Perfect for mathematical computations, circular buffer implementations, and mor

Downloads

22

Readme

modulo

A robust modular arithmetic utility for JavaScript, handling both positive and negative integers with ease. Ensure consistent, non-negative results for your modulo operations. Perfect for mathematical computations, circular buffer implementations, and more.

Installation

npm install @hridel/modulo

mod function example

import { mod } from '@hridel/modulo';

const exampleResult: number = mod(-1, 5);
console.log(`The result of -1 mod 5 is: ${exampleResult}`);  // The result of -1 mod 5 is: 4

rem function example

import { rem } from '@hridel/modulo';

// Example usage
const exampleResult: number = rem(-1, 5);
console.log(`The result of -1 rem 5 is: ${exampleResult}`);  // The result of -1 rem 5 is: -1

div function example

import { div } from '@hridel/modulo';

// Example usage
const exampleResult: number = div(-1, 5);
console.log(`The result of -1 div 5 is: ${exampleResult}`);  // The result of -1 div 5 is: -1

Why to use this library?

Because (-1 % 5) in JavaScript returns -1, which is not a valid result for a modulo operation.

This library ensures that the result of the mod function is always a non-negative integer.

The rem function returns the remainder of the division operation, which can be negative.

And the div function returns the quotient rounded towards negative infinity, similar to Haskell's div.