The Fundamentals — JS — Syntax Podcast 162

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Wes Bos

Wes Bos

Full Stack JavaScript Developer. Creator of really good web development courses. BBQ enthusiast.

Scott Tolinski

Scott Tolinski

Web Developer, Creator of Level Up Tuts, Bboy, Robotops Crew and Youtuber

Playing: 162: The Fundamentals — JS

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Jul 17th, 2019

The Fundamentals — JS

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In this episode of Syntax, Scott and Wes talk about the fundamentals of JavaScript - the set of core skills you should know before branching off into other frameworks, libraries, etc.

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Show Notes

3:07 - Variables + Scoping

  • var/let/const
  • Block scope
  • Function scope
  • Scope lookup

6:06 - Types

  • Objects
    • Reference vs. copy

7:15 - Functions

  • Types of functions
    • Anonymous vs. named
    • Expressions
    • Arrow functions
  • Methods

9:33 - DOM

  • Selecting
  • Updating
  • Creating

15:07 - Prototypes + this

  • this
  • Objects

20:16 - Events

  • Listening, callbacks
  • dispatchEvent
  • Bubbling

22:05 - Arrays

  • Push, pop, manipulate
  • Spread, rest
  • Map, filter, reduce
  • Arrays vs. objects
  • Mutation vs. immutable

26:25 - Flow control

  • Looping
  • If
  • Promises + Async + Await

29:47 - Security and accessibility

  • XSS and innerHTML

32:04 - Things you should know, but not necessarily master

  • Modules
  • Closures
  • Ajax requests

35:26 - Clean code

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