Lodash is a JavaScript library that helps programmers write more concise and maintainable JavaScript.
It can be broken down into several main areas:
Utilities: for simplifying common programming tasks such as determining type as well as simplifying math operations.
Function: simplifying binding, decorating, constraining, throttling, debouncing, currying, and changing the pointer.
String: conversion functions for performing basic string operations, such as trimming, converting to uppercase, camel case, etc.
Array: creating, splitting, combining, modifying, and compressing
Collection: iterating, sorting, filtering, splitting, and building
Object: accessing, extending, merging, defaults, and transforming
Seq: chaining, wrapping, filtering, and testing.
It has had multiple releases, so not all functions are available in all implementations. For example, _.chunk has only been available since version 3.0.0.