Quick JavaScript Recap

In this lesson, we assume you know your way around JavaScript but you may have forgotten a detail or two about the basics of the language. We will go quickly over the fundamental building blocks of JavaScript and try to clarify some concepts that sometimes can be a little blurry.

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Lesson Goals
  • Understand the concepts you should already know before moving on to other lessons, including:
    1. JavaScript's intrinsic data types.
    2. How to create functions.
    3. How the DOM works.
    4. How to use object literal syntax.
    5. How the XMLHttpRequest and JSON objects work.