@hgargg-0710/one/dist/src/number/number.js

A tiny npm library purposed for providing beautiful solutions to frequent miniature (one-line/one-expression) tasks for various JS datatypes.

/**
 * Sums all the given numbers and returns the result
 */
export const sum = (...numbers) => numbers.reduce((last, curr) => last + curr, 0);
/**
 * Returns the product of all the given numbers
 */
export const product = (...numbers) => numbers.reduce((last, curr) => last * curr, 1);
/**
 * Returns the minimum value of the given numbers
 */
export const min = Math.min;
/**
 * Returns the maximum value of the given numbers
 */
export const max = Math.max;
/**
 * @returns whether the given number is even
 */
export const isEven = (x) => x % 2 === 0;
/**
 * @returns whether the given number is odd
 */
export const isOdd = (x) => x % 2 === 1;
/**
 * Using the given number `x`, constructs and returns a new number guaranteed to be odd - `2 * x + 1`
 */
export const makeOdd = (x) => 2 * x + 1;
/**
 * Using the given number `x`, constructs and returns a new number guaranteed to be even - "2 * x"
 */
export const makeEven = (x) => 2 * x;
/**
 * Returns difference of `a` (defaults to 0) with sum of `b`
 */
export const difference = (a = 0, ...b) => a - sum(...b);