prefer-number-properties.md

Pattern: Global number utilities usage

Issue: -

Description

ECMAScript 2015 moved global number utilities onto the Number constructor for consistency. Using methods like Number.parseInt(), Number.isNaN(), and constants like Number.POSITIVE_INFINITY is preferred over their global counterparts. Some methods like Number.isNaN() and Number.isFinite() also provide more precise behavior than their global versions.

Examples

Example of incorrect code:

const foo = parseInt("10", 2);
const bar = parseFloat("10.5");
const check = isNaN(value);
if (value === Infinity) {}

Example of correct code:

const foo = Number.parseInt("10", 2);
const bar = Number.parseFloat("10.5");
const check = Number.isNaN(value);
if (value === Number.POSITIVE_INFINITY) {}