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-
Free ChapterProgramming, Machine Code, and Interpreters
- Welcome to the Course
- Introduction
- Programming - What Is It?
- English Analogy
- Order Matters
- GIGO
- Quick Recap
- Hundreds of Languages
- Machine Code - Introduction
- Machine Code - A Little Deeper
- Processors
- Low-Level Languages
- High-Level Languages
- Step Back - A Comparison Between Low Level and High-Level Languages
- Writing JavaScript - How
- Compiling
- Interpreters
- Compiling Versus Interpreting
- Intermediate
- Recap: Compiling, Interpreting, and JavaScript
- Outro
-
HTML, CSS, and JavaScript (and Bonus ECMAScript)
-
JavaScript Engines
-
Writing JavaScript in the Console
-
IDE (Integrated Development Environment) and Text Editors - Introduction
- IDEs (Integrated Development Environments) - Introduction
- Local Server
- How to Include JavaScript in Your HTML
- <Script> Tag - Example of Inline and External
- Inline JavaScript Example within the <head> Tag and <body> Tag
- Order Matters
- Trick Question - What Do You Expect to Happen?
- Order Matters - The Problem
- Order Matters - Why Did the Element Not Load?
- Order Matters - Fixing the Problem
- External JavaScript and the Async Attribute
-
Syntax
- Syntax - Introduction
- Syntax - What Is It?
- Syntax Parser
- White Space
- Semicolons and the 'return' Statement
- Comments
- Data Types and the typeof() Method
- Primitive Data Types - An Example
- String Data Type = "Click Me" Button Example
- Properties
- Number Date Type - Floating Points
- Number Data Type: 0.1 + 0.2
- Number Data Type - Base 10 Versus Base 2
- Number Data Type - Number (), Infinity, and More
- Null and Undefined Data Types
- Escaping
- Operators - Introduction
- Operators - Binary Versus Unary
- Coercion - Introduction
- Coercion - String, Number, and Boolean
-
Variables
- Variables - Section Introduction
- Variables - What Are They?
- Variable Creation: Declare, Initialize, and Assign
- Identifiers
- VAR - the Old Way to Declare a Variable
- LET - the New Way to Declare a Variable
- CONST - the New Way to Declare a Constant Variable
- CONST - Try and Catch
- Variables - Quick Recap
- Scope - What Is It?
- Local Versus Global Scope, and Function Versus Block Scope
- Scope - VAR Versus LET and a NESTED Block
- Using DevTools to Determine Scope
-
Dialog Boxes in JavaScript
-
JavaScript Dates
-
Objects
- Section Introduction
- Objects - Introduction
- name:value Pairs
- Objects and Data - How They Relate to Each Other
- Objects Versus Variables
- Properties and Methods
- Accessing Properties
- Creating Objects - Four Ways
- Creating Objects - 1. Object Literal
- Creating Objects - 2. Constructor Function Introduction
- Creating Objects - 2. Constructor Function Example
- Pause Quickly
- Construction Function Versus Object Literal - Part 1
- Construction Function Versus Object Literal - Instantiation Versus Singleton Approach
- Construction Function Versus Object Literal - init Function and Which to Choose
- Creating Objects - 3. Object.create()
- Examples of Object.create()
- Another Example of Object.create()
- Creating Objects - 4. Classes
- Understanding Classes Starts with the Constructor Function
- Class Example
- Objects Recap and an Example of How Objects can Be Passed into Other Functions
- JavaScript Object Model
-
Advanced Section - Building a Custom Polyfill
- Introduction
- What Is a Browser?
- Do Browsers Follow a Set of Common Rules?
- What Is a Polyfill?
- Testing Whether the forEach() Method Exists in Our Browser
- What Is forEach()
- Practical Example of forEach()
- Custom forEach() Polyfill - First Step
- Custom forEach() Polyfill - Introduction
- Custom forEach() Polyfill - Callback Function
- What Is THIS?
- Custom forEach() Polyfill - Final
- Outro
-
Arrays and Loops
-
Prototypes
-
Functions
- Section Introduction
- What is a Function?
- Invoking a Function Versus Returning a Function
- Cool Example: Click on a Paragraph and Make Text Change
- Cool Example (Advanced): Click Button and Display Random Quotes
- Explanation of Math.Random()
- Return Keyword
- There Are Two Types of Functions
- Function Expressions Versus Declarations - Examples
- Function Declaration Versus Function Expression
- New Arrow Syntax
- What Does "No Binding of This" Mean?
- Recap - Variables, Objects, and Functions
- Introduction to the toLowerCase() Function
- Introduction to the Array.from() Method
- How Does the Array.from() Method Work?
- Introduction to the indexOf() Method
- Using indexOf() with Arrays
- Using indexOf() with Strings
-
JavaScript - THIS, Execution Context and Lexical Environments
- Section Introduction
- What is 'This' Reference Variable?
- Global Execution Context
- Global Versus Functional Execution Context
- Execution Stack
- Execution Stack - Example
- What Is a Lexical Environment?
- Lexical Environment - Advanced Example
- Six Rules for Determining What This Refers To
- Call (), Apply () and Bind () Methods
-
Teaser - How Does JavaScript Affect the Critical Rendering Path
- Introduction
- What Is the CRP?
- How Browsers Used to Work
- How Browsers Work Today
- Render Blocking Resources - Introduction
- JavaScript and the DOM
- JavaScript Is Render Blocking
- Placing JavaScript at the Bottom of Your File
- Using the Async Attribute
- Summary of Where We Can Place Our JS to Improve the CRP
- Outro
About this video
JavaScript is the #1 scripting language of the web, where a lot of the dynamic and styled content is handled by JavaScript in the background. But before using this language to create dynamic websites, you need to have a firm grasp of how it works behind the scenes.
You will learn “why” things work and not just “how”. Understanding the fundamentals of JavaScript is important as it will allow you to write more complicated code. And trust me, every programming encounters bugs, and without understanding the fundamentals, you will be totally lost.
By the end of this course, you will be able to “speak” JavaScript by gaining an understanding of how the browser uses it; what variables, objects, and functions are; what different data types there are; and how to manipulate content on a website. We will dig deeper and create our own dialog methods from scratch. You will learn about the arrow syntax, Math.random() function, looping through objects and arrays, and working with dates. We will look at prototypes, JS Engines, the Execution Stack, and a whole bunch more!
Through practical examples, this course helps you understand JavaScript piece by piece. And we will use the latest and best features of JavaScript along the way so you can stay ahead of the pack.
All the resources for this course are available at https://github.com/PacktPublishing/Complete-JavaScript-Course
- Publication date:
- April 2022
- Publisher
- Packt
- Duration
- 12 hours 25 minutes
- ISBN
- 9781804611685
Download code from GitHub