JavaScript Basics I

Learn JavaScript Basics I

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Knowledge Check

Take this customized & interactive quiz to test your knowledge on JavaScript Basics I, then check out the learning resources below.

Question 1 of 3

Which of the following is not a JS primitive?

  • number
  • bigint
  • float
  • string
  • boolean
  • null
  • undefined
  • symbol

Core Learning

The fastest way to learn JavaScript Basics I is simply to study these exact resources. Focus on the 👀 to learn extra quickly and save time!

History and Evolution of JavaScript

👀 1 Thing to Focus On

  • Get a high-level understanding of JavaScript

JavaScript Primitives

👀 1 Thing to Focus On

  • Understand the 7 JS primitive types

JavaScript Objects

👀 3 Things to Focus On

  • Almost everything in JavaScript is an object, so it's important to understand how to use them.
  • Pay special attention to the multiple different ways you can access objects.
  • JS objects are analogous to sets and dictionaries in other programming languages.

JavaScript Arrays

👀 1 Thing to Focus On

  • JS arrays are analogous to lists in other programming languages.

JavaScript Operators

👀 1 Thing to Focus On

  • Pay special attention to comparison operators; those are the most commonly used.