nhb-toolbox/dist/cjs/number/guards.js

A versatile collection of smart, efficient, and reusable utility functions, classes and types for everyday development needs.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.isMultiple = exports.isOdd = exports.isEven = void 0;
exports.isPerfectSquare = isPerfectSquare;
exports.isFibonacci = isFibonacci;
exports.areInvalidNumbers = areInvalidNumbers;
const primitives_1 = require("../guards/primitives");
const utilities_1 = require("./utilities");
const isEven = (input) => {
    const parsed = (0, utilities_1.normalizeNumber)(input);
    if ((0, primitives_1.isUndefined)(parsed))
        return false;
    return parsed % 2 === 0;
};
exports.isEven = isEven;
const isOdd = (input) => {
    const parsed = (0, utilities_1.normalizeNumber)(input);
    if ((0, primitives_1.isUndefined)(parsed))
        return false;
    return parsed % 2 !== 0;
};
exports.isOdd = isOdd;
const isMultiple = (input, multipleOf) => {
    return input % multipleOf === 0;
};
exports.isMultiple = isMultiple;
function isPerfectSquare(num) {
    return Number.isInteger(Math.sqrt(num));
}
function isFibonacci(num) {
    return isPerfectSquare(5 * num * num + 4) || isPerfectSquare(5 * num * num - 4);
}
function areInvalidNumbers(...numbers) {
    return numbers?.some((n) => !Number.isFinite(n));
}