ADD Packages

Add, remove, list or check style classes of an element, or group of them, in your DOM.

比较数组前后的变化，新增或删除了哪些

Auto add comments to your code, do better at documentation!

Add the numbers in an array cumulatively.

Create HTML elements (blocks) from JavaScript that follow the BEM architecture (Block, Element, Modifier).

Math operations more reliable and predictable

Uses binary search to insert a value into any sorted collection.

Detect, enforce or strip BOM signatures.

All-purpose validation library

Multiplies x and a constant and adds the result to y.

A javascript module for defining custom enum types and generating instances of that type.

Allows you to customize the toString method of passed `err`. Also adds useful properties like `line`, `filename` and `column` to the `err` object.

Javascript date formatter with add and subtract date and time options

Package for the user to manage hers worona extensions.