?Explain what a library is and what it is used for, and name one commonly used library.?
What will be an ideal response?
In addition to storing scripts for multiple pages in the same website, sometimes JavaScript source files store especially useful generic scripts used on many different websites. These files, known as libraries, are often developed by a single programmer or a team of programmers and distributed online. Many libraries are developed to solve a problem on one website and turn out to be useful for other sites as well. Programmers often make libraries available for free reuse.A handful of libraries are commonly used to perform a variety of functions on large, complex websites. For instance, Node.js and Backbone.js contain tools for creating and managing large web applications. Another library, Modernizr, is widely used to enable web authors to deliver a consistent des?ign and functionality across different browsers, browser versions, and platforms.?
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