Is Packages

Check if the internet connection is up

js判断函数，解决80%类型判断问题

Returns true if dom element

Javascript checking library

JavaScript awesome yet another assertion module

ES2015-compliant shim for Number.isNaN - the global isNaN returns false positives.

Check / validate that given value is valid hexa color (hex with alpha), using `hexa-color-regex` - the best hexa color regex.

Checks if a URL is relative without domain

Javascript library to detect touch friendly devices

Detect the file type of a Buffer/Uint8Array in ES5 (can be used for browser and create-react-app

Checks if two sets are equal.

Checks if two sets are equal.

Checks if array has a value.

Checks if array has a value.

Checks if value is set.

Checks if sets have no common values.

Detect the file type of a Buffer/Uint8Array

type checking: is.array, is.arguments, is.function, is.string, is.number, is.date, is.regexp, is.object

Does an HTML tag start at given position?

Checks if sets have no common values.