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New static methods - are like their global namesakes:
Number.isNaN(value);
Number.isFinite(value);
Number.parseInt('1');
Number.parseFloat('3.14');
const isNotANumber = Number.isNaN(Number.NaN);
console.log(isNotANumber); // true
const isInfinity = !Number.isFinite(Number.POSITIVE_INFINITY);
console.log(isInfinity); // trueNew constants:
Number.MAX_SAFE_INTEGER // the largest integer that can safely and precisely represented in JS
Number.MIN_SAFE_INTEGER // the smallest integer that can safely and precisely represented in JSNew static methods:
Number.isInteger(1); // checks if arg is a number and doesn't have a decimal part
Number.isSafeInteger(1);
// is similar to Number.isInteger, also checks is input within Number.MIN_SAFE_INTEGER - Number.MAX_SAFE_INTEGER range