jQuery

sitepoint.com
This site illustrates the difference between JavaScript and jQuery code. I appreciated the list "The Importance of jQuery Plugins" in making the usefulness of jQuery clear. JQuery allows for a uniform "default" setting in code, which can be overirdden using extended functions and values. Also, these variations can be done more concisely, in one line of code. Finally, jQuery plugins allows us to use the same functionality over multiple elements without duplicating code.

W3schools
w3schools explains the "whats" about jQuery very well. The difference between jQuery and JavaScript is in their relationship to each other: jQuery takes a lot of common tasks that require many lines of javaScript code to accomplish, and allows those tasks to be recalled using a single line of code. As w3schools points out, "JQuery is a lightweight,'write less,do more,' JavaScript library."

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