Check if a value meets certain criteria

Isomorphic, functional type-checking for Javascript

A simple utility to Check the value is number or can convert to a number, for example string ' 123 ' can be converted to 123.

A collection of useful helper functions for numbers manipulation in Javascript

A collection of useful predicate functions for JavaScript.

Type guards

A collection of JavaScript type checks.

A type guard for finite primitive numbers.

Jackens’ JavaScript helpers.

Checks whether a value is a finite number or not.

2 functions that check if passed argument is or is not a finite number

Well tested 'is number' checks, that can optionally include number-like strings, and non-finite values.

A javascript isNumber that behaves the way you would expect

Validates if a value is a finite number.

value-guards ============

TypeScript Guard function for checking finite values.

A type-safe utility library for functional programming

Predicate functions for checking JavaScript and enjoy.js types

Number utilities: clamp, roundTo, toInt/Float, isInRange, lerp, sum, avg (Node and Edge).

node-math is a lightweight mathematical utility library that provides a rich set of mathematical functions and constants. It is suitable for scientific computing, engineering applications, and mathematical needs in daily development, supporting both Commo