A JavaScript implementation of many web standards

A JavaScript library that breaks strings into their individual user-perceived characters (including emojis!)

Test if a value is a number.

Detect Filetype by bytes

Convert a double-precision floating-point number to the nearest single-precision floating-point number.

Double-precision complex number functions.

Single-precision complex number functions.

Create a double-precision floating-point number from a higher order word and a lower order word.

Return a normal number `y` and exponent `exp` satisfying `x = y * 2^exp`.

Lightweight browser detector

Is this value a JS Number object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

A 2D spatial index for axis-aligned boxes

Return a double-precision floating-point number with the magnitude of x and the sign of y.

Return an integer corresponding to the unbiased exponent of a single-precision floating-point number.

Bash-like brace expansion, implemented in JavaScript. Safer than other brace expansion libs, with complete support for the Bash 4.3 braces specification, without sacrificing speed.

Return an unsigned 32-bit integer corresponding to the more significant 32 bits of a double-precision floating-point number.

Difference between one and the smallest value greater than one that can be represented as a double-precision floating-point number.

A transport for winston which logs to a rotating file each day.

Compute the absolute value of a double-precision floating-point number.

Multiply a double-precision floating-point number by an integer power of two.