Definition

A library is a collection of code, scripts, classes and other useful elements that can be used to develop applications. Libraries provide developers with a set of pre-written, tested and verified functions, algorithms and other resources that can be used to make developing applications faster and easier.

Examples of libraries include:

• Bootstrap: This is a JavaScript library created by Twitter that provides developers with a range of HTML, CSS and JavaScript components that can be used to quickly build modern, responsive websites.

• React: React is a popular JavaScript library created by Facebook. It provides developers with the tools they need to quickly build dynamic web applications with minimal code.

• jQuery: jQuery is a JavaScript library created by John Resig in 2006. It makes HTML document traversal and manipulation, event handling, animation and Ajax much simpler.

• D3.js: D3.js is a powerful visualization library for manipulating document by HTML, SVG and CSS. It makes creating data-driven documents easier.

Use cases:

• Creating Interactive Graphs: Libraries like D3.js and jQuery can be used to quickly create interactive graphs to visualize data.

• Building Mobile Applications: Libraries such as Bootstrap, React and jQuery can be used to create fast, responsive mobile applications.

• Developing Web Applications: Libraries such as React and jQuery can be used to quickly build modern web applications.

• Enabling Animation: Libraries such as jQuery can be used to animate elements on a web page.