Checks if JavaScript variable is a number. Strings are not allowed.

Test if a value is a number.

Test if a value is equal to negative zero.

Test if a value is equal to positive zero.

Test if a value is a number having a nonpositive value.

Test if a value is a number having a negative value.

A native module for effectively validating if a value is type Number.

Test if a value is a number having a non-infinite positive value.

Test if a value is a number having a positive value.

This package is a simple utility to check if a value is a number. Repository

Test if a value is a number having a nonpositive finite value.

Test if a value is a number having a nonnegative value.

Test if a value is a number having a negative value.

Test if a value is a number having a nonnegative finite value.

Test if a value is an array-like object of numbers.

Test if a string is a well-formed string.