Extracts browser and operating system information from the user agent string or user agent object(userAgentData).

A module used to change the information of user action entered by various input devices such as touch screen or mouse into the logical virtual coordinates. You can easily create a UI that responds to

A base class utility that manages events and options in modules.

A module used to arrange elements including content infinitely according to grid type. With this module, you can implement various grids composed of different card elements whose sizes vary. It guaran

A class that checks if an element is visible in the base element or viewport.

fs-extra contains methods that aren't included in the vanilla Node.js fs package. Such as recursive mkdir, copy, and remove.