Typescript: The Complete Developer's Guide

27h 15m 33s
English
Paid
July 20, 2024

Every other course online teaches you the basic syntax and features of Typescript, but only this course will show you how to apply Typescript on real projects, instructing you how to build large, successful projects through example.

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This is the best course online for mastering Typescript.

Typescript is a 'super-set' of Javascript.  That means that if you already know Javascript, you are ready to take this course.  Typescript adds in several important features to Javascript, including a type system.  This type system is designed to help you catch errors during development, rather than when you are running your code.  That means you'll be twice as productive by catching bugs earlier in development.  But besides the type system, Typescript also provides several tools for structuring large codebases and writing truly reusable code.

Mastering Typescript by reading the documentation alone is challenging.  Although you might know what a 'typed array' or an 'interface' is, the documentation (and other courses!) don't show you where to use this features, or how to use them effectively.  The goal of this course is to help you understand why each feature of Typescript exists, and exactly where to use them.

Top companies are hungry for Typescript developers.  Some of the largest web apps today are being built with Typescript.  Employers are scrambling to find engineers who are fluent with this cutting edge system.  Solid knowledge of Typescript will make you far more employable, by giving you a unique skill that few other engineers possess.

Planning on building your own apps?  Using Typescript will help you structure your project correctly from day one, ensuring that you won't be crushed under technical debt at some critical stage of your company.  In this course, you'll learn how to write reusable code, with a tremendous emphasis on leveraging classes and interfaces to make swappable 'widgets'.  You will be able to reconfigure your apps on the fly to build wildly different features with only a minimum amount of effort

Learn from someone who has worked on one of the largest Typescript projects around. On professional projects of my own, I have developed plugins for an open-source, browser-based code editor called Theia.  The Theia project is absolutely gargantuan in scale, encompassing hundreds of thousands of lines of code, all written in Typescript.  This project works only thanks to the power of Typescript.

But don't just take my word for it - check out the reviews for this course! You'll see that other engineers, just like yourself, have had great success and acquired a new understanding of how to build scalable web applications.

There is just too much content in this course to summarize in a few short words, but here is a partial listing of the different skills you'll master:

  • Understand why Composition vs Inheritance is the most mis-understood topic in the Javascript community

  • Master the fundamental features of Typescript by working on real world projects

  • We'll build a custom front-end framework from scratch that you can use in place of React or Angular on your own personal projects

  • Comprehend the complex interplay between classes and interfaces, and why these two pieces of Typescript enable you to build incredibly reusable code

  • Dive deeper into Typescript with decorators, which we'll use to build a custom integration between Typescript and Express

  • Structure your React and Redux applications more confidently by understanding how to couple them with Typescript

  • Skip the documentation for third party libraries by fluently reading type definition files

  • Learn just how smart Typescript is by experiencing how deeply it analyzes your code for errors

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# Title Duration
1 How to Get Help 01:05
2 Typescript Overview 06:20
3 Environment Setup 08:00
4 A First App 04:44
5 Executing Typescript Code 05:04
6 One Quick Change 03:36
7 Catching Errors with Typescript 07:23
8 Catching More Errors! 05:16
9 Do Not Skip - Course Overview 03:37
10 Types 05:13
11 More on Types 05:54
12 Examples of Types 04:50
13 Where Do We Use Types? 00:50
14 Type Annotations and Inference 02:04
15 Annotations with Variables 04:54
16 Object Literal Annotations 06:54
17 Annotations Around Functions 05:57
18 Understanding Inference 03:52
19 The 'Any' Type 07:48
20 Fixing the 'Any' Type 01:50
21 Delayed Initialization 03:06
22 When Inference Doesn't Work 04:38
23 More on Annotations Around Functions 04:57
24 Inference Around Functions 06:09
25 Annotations for Anonymous Functions 01:43
26 Void and Never 02:50
27 Destructuring with Annotations 03:36
28 Annotations Around Objects 07:06
29 Arrays in Typescript 05:06
30 Why Typed Arrays? 04:31
31 Multiple Types in Arrays 02:58
32 When to Use Typed Arrays 00:55
33 Tuples in Typescript 04:06
34 Tuples in Action 05:29
35 Why Tuples? 03:21
36 Interfaces 01:27
37 Long Type Annotations 04:43
38 Fixing Long Annotations with Interfaces 04:37
39 Syntax Around Interfaces 03:32
40 Functions in Interfaces 04:47
41 Code Reuse with Interfaces 04:16
42 General Plan with Interfaces 03:13
43 Classes 03:48
44 Basic Inheritance 03:04
45 Instance Method Modifiers 06:42
46 Fields in Classes 06:19
47 Fields with Inheritance 04:19
48 Where to Use Classes 01:11
49 App Overview 02:46
50 Bundling with Parcel 04:55
51 Project Structure 03:20
52 Generating Random Data 05:30
53 Type Definition Files 05:18
54 Using Type Definition Files 06:21
55 Export Statements in Typescript 05:07
56 Defining a Company 04:44
57 Adding Google Maps Support 07:39
58 Google Maps Integration 04:07
59 Exploring Type Definition Files 12:47
60 Hiding Functionality 06:29
61 Why Use Private Modifiers? Here's Why 08:26
62 Adding Markers 09:19
63 Duplicate Code 02:46
64 One Possible Solution 06:39
65 Restricting Access with Interfaces 05:36
66 Implicit Type Checks 03:27
67 Showing Popup Windows 06:48
68 Updating Interface Definitions 07:12
69 Optional Implements Clauses 06:07
70 App Wrapup 08:09
71 App Overview 01:35
72 Configuring the TS Compiler 07:41
73 Concurrent Compilation and Execution 05:06
74 A Simple Sorting Algorithm 04:48
75 Sorter Scaffolding 03:11
76 Sorting Implementation 05:18
77 Two Huge Issues 07:38
78 Typescript is Really Smart 09:35
79 Type Guards 09:15
80 Why is This Bad? 02:23
81 Extracting Key Logic 07:30
82 Separating Swapping and Comparison 13:59
83 The Big Reveal 04:39
84 Interface Definition 04:49
85 Sorting Arbitrary Collections 11:09
86 Linked List Implementation 24:16
87 Just...One...More...Fix... 04:04
88 Integrating the Sort Method 02:45
89 Issues with Inheritance 06:55
90 Abstract Classes 06:26
91 Why Use Abstract Classes? 04:31
92 Solving All Issues with Abstract Classes 04:01
93 Interfaces vs Abstract Classes 03:24
94 Project Overview 01:46
95 Project Setup 05:58
96 Type Definition Files - Again! 06:46
97 Reading CSV Files 05:06
98 Running an Analysis 04:23
99 Losing Dataset Context 05:13
100 Using Enums 06:20
101 When to Use Enums 07:05
102 Extracting CSV Reading 08:51
103 Data Types 02:34
104 Converting Date Strings to Dates 05:03
105 Converting Row Values 03:38
106 Type Assertions 03:58
107 Describing a Row with a Tuple 07:29
108 Not Done with FileReader Yet! 03:15
109 Understanding Refactor #1 04:36
110 Creating Abstract Classes 04:22
111 Variable Types with Generics 11:29
112 Applying a Type to a Generic Class 04:12
113 Alternate Refactor 04:21
114 Interface-Based Approach 02:05
115 Extracting Match References - Again! 02:34
116 Transforming Data 02:37
117 Updating Reader References 03:40
118 Inheritance vs Composition 03:21
119 More on Inheritance vs Composition 07:23
120 A Huge Misconception Around Composition 14:57
121 Goal Moving Forward 05:17
122 A Composition-Based Approach 06:27
123 Implementing an Analyzer Class 07:25
124 Building the Reporter 05:27
125 Putting It All Together 03:36
126 Generating HTML Reports 05:10
127 One Last Thing! 05:35
128 Oops, My Bad 03:15
129 App Wrapup 03:34
130 More on Generics 05:05
131 Type Inference with Generics 02:50
132 Function Generics 06:06
133 Generic Constraints 05:51
134 App Overview 02:46
135 Parcel Setup 02:43
136 Framework Structure 08:06
137 Designing the User 02:49
138 Retrieving User Properties 06:00
139 Optional Interface Properties 06:38
140 An Eventing System 02:45
141 Listener Support 04:24
142 Storing Event Listeners 05:25
143 Dynamic Array Creation 05:28
144 Triggering Event Callbacks 03:58
145 Adding JSON Server 07:15
146 Understanding REST Conventions 08:53
147 Adding Fetch Functionality 05:13
148 Successfully Fetching Model Data 04:51
149 Saving User Data 08:58
150 Refactoring with Composition 03:49
151 Re-Integrating Eventing 12:50
152 Composition with Nested Objects 02:46
153 A More Complicated Extraction 02:49
154 Options for Adapting Sync 09:33
155 Refactoring Sync 10:42
156 Generic Constraints Around Sync 03:31
157 Connecting Sync Back to User 04:31
158 Optional Properties 07:01
159 Extracting an Attributes Class 03:13
160 The Get Method's Shortcoming 06:19
161 Two Important Rules 07:07
162 An Advanced Generic Constraint 09:37
163 Re-Integrating Attributes 03:19
164 Composition is Delegation 04:40
165 Reminder on Accessors 05:08
166 Passthrough Methods 06:56
167 A Context Issue 08:38
168 Setting Data While Triggering 03:23
169 Fetching User Data 06:27
170 Saving Data 05:39
171 Composition vs Inheritance...Again! 09:03
172 Extracting a Model Class 07:30
173 Extending the User 05:25
174 Final User Refactor 03:49
175 Model Wrapup 03:39
176 Shortened Passthrough Methods 05:40
177 Users Collection 03:27
178 Implementing a Users Collection 03:02
179 Parsing User JSON 07:13
180 Generic User Collection 06:23
181 A Class Method for Collections 02:15
182 View Classes 04:04
183 Building the UserForm 04:46
184 The UserForm's Render Method 03:04
185 Rendering HTML 02:07
186 Defining an Events Map 06:14
187 Binding Event Handlers 07:07
188 Adding Model Properties 04:16
189 Binding Events on Class Name 05:09
190 Adding Methods to the User 04:31
191 Re-Rendering on Model Change 04:57
192 Reading Input Text 04:40
193 Strict Null Checks 06:13
194 Reusable View Logic 12:26
195 Extracting a View Class 04:11
196 Extending with Generic Constraints 12:16
197 Saving Data From a View 03:58
198 UserEdit and UserShow 06:13
199 Nesting with Regions 04:49
200 Mapping Regions 05:41
201 Testing Region Mapping 04:02
202 View Nesting 06:54
203 Collection Views 02:21
204 CollectionView Implementation 16:53
205 App Wrapup 03:36
206 Typescript with JS Libraries 05:35
207 App Overview 03:20
208 Project Setup 03:32
209 Basic Routes with Express 06:32
210 Using an Express Router 03:47
211 Parsing Form Bodies 05:56
212 Why Doesn't Express Play Nicely with TS? 13:56
213 Issues with Type Definition Files 10:17
214 Dealing with Poor Type Defs 06:29
215 Wiring Up Sessions 08:37
216 Checking Login Status 03:20
217 Logging Out 01:10
218 Protecting Routes 04:52
219 A Closer Integration 06:34
220 The Refactoring Process 03:15
221 Prototypes Reminder 08:44
222 Decorators in Typescript 06:49
223 Details on Decorators 07:41
224 Property Descriptors 06:12
225 Wrapping Methods with Descriptors 02:08
226 Decorator Factories 02:47
227 Decorators Around Properties 03:58
228 More on Decorators 07:33
229 A Quick Disclaimer 00:59
230 Project Overview 08:18
231 Why is This Hard? 07:07
232 Solution Overview 05:52
233 Basics of Metadata 08:47
234 Practical Metadata 11:09
235 Let's Refactor! 04:52
236 The 'Get' Decorator 04:26
237 The Controller Decorator 04:21
238 Proof of Concept 05:13
239 A Few Fixups 08:10
240 Defining a RouteBinder 05:05
241 Closed Method Sets with Enums 07:39
242 Metadata Keys 03:44
243 The 'Use' Decorator 08:02
244 Testing Use 03:23
245 Body Validators 05:56
246 Automated Validation 03:26
247 Testing Automated Validation 05:37
248 Fixing Routes 06:04
249 Using Property Descriptors for Type Checking 05:19
250 App Wrapup 01:23
251 React and Redux Overview 06:06
252 App Overview 02:07
253 Generating the App 01:08
254 Simple Components 03:36
255 Interfaces with Props 03:26
256 Handling Component State 02:31
257 Confusing Component State! 10:41
258 Functional Components 03:16
259 Redux Setup 07:32
260 Action Creators with Typescript 06:46
261 Action Types Enum 04:52
262 The Generic Dispatch Function 04:49
263 A Reducer with Enums 06:47
264 Validating Store Structure 05:07
265 Connecting a Component to Redux 06:11
266 Rendering a List 04:37
267 Adding in Delete Functionality 02:55
268 Breaking Out Action Creators 03:22
269 Expressing Actions as Type Union 04:08
270 Type Guards in Reducers 02:49
271 Again, Type Definition Files 03:02
272 Tracking Loading with Component State 04:07
273 App Wrapup 03:39
274 Generating TypeScript Enabled Projects 01:23
275 File Extensions and Starting Up React 04:35
276 Changes with TypeScript 02:34
277 The Big Difference with Props 03:55
278 Explicit Component Type Annotations 05:51
279 Annotations with Children 05:48
280 State with TypeScript 04:42
281 Type Inference with State 05:42
282 Quick Finish to the Example 00:56
283 More on State 04:20
284 Type Unions in State 05:42
285 Inline Event Handlers 03:19
286 Typing Standalone Event Handlers 02:41
287 Handling Drag Events Too! 03:45
288 Applying Types to Refs 05:36
289 More on Refs 04:31
290 App Overview 02:05
291 Project Setup 01:50
292 Redux Store Design 08:54
293 Reducer Setup 08:17
294 Annotating the Return Type 01:27
295 Typing an Action 01:55
296 Separate Interfaces for Actions 04:22
297 Applying Action Interfaces 04:23
298 Adding an Action Type Enum 05:42
299 A Better Way to Organize Code 03:38
300 Adding Action Creators 04:28
301 Adding Request Logic 03:16
302 Applying Typings to Dispatch 02:47
303 Setting Up Exports 04:20
304 Wiring Up to React 03:25
305 Oops... Initial State! 01:04
306 Reminder on Event Types 03:01
307 Calling an Action Creator 03:06
308 Binding Action Creators 04:22
309 Selecting State 04:17
310 Awkward Typings Around React-Redux 04:47
311 Creating a Typed Selector 04:01
312 Consuming Store State 03:03
313 Quick Wrapup - Final Lecture 03:19

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