Detect Packages

Check if a Buffer/Uint8Array is a 7Z archive

Check if the runtime is io.js instead of Node.js

Check if a Buffer/Uint8Array is an ISO image

Helper to check if the current terminal is iTerm

Check if the current environment is the Windows Command Prompt.

Check if a number is composite

detect crawler

Check if a Buffer/Uint8Array is a .class file.

Check if a number is a HTTP Client Error code

Detect if your code is running inside a tmux session, and if so, which pane

Check if a Buffer is a TURN message.

Checks if a given function is deprecated.

Find out whether a phone number is disposable

Check whether a file can be executed

given `req` or `res`, is it an Express app?

Check if a string or buffer is esnext

Check if a number is a HTTP server error code

Check if an element is a button

Detect if your code is running in the Chakra JavaScript engine

Check if a Buffer/Uint8Array is a BPG image