Using `keyof` | Building SPAs Training

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Learn TypeScript

Understanding TypeScript

What is TypeScript?
Getting familiar with the editor
Understanding the benefits of TypeScript
Quiz

Using Types

Understanding the types in JavaScript
Using type annotations
Understanding type inference
Quiz

Using Standard TypeScript Types

Using the Date type
Understanding the any type
Understanding and using the void type
Using Arrays
Using tuples
Using the never type
Using the unknown type
Quiz

Creating Types

Creating enumerations
Creating object types
Creating type aliases
Creating interfaces
Creating union types
Creating intersection types
Interfaces v type aliases
Thinking of types as sets of values
Understanding type compatibility
Quiz

Using Classes

Working with standard JavaScript classes
Using access modifiers
Method overloading
Extending classes
Quiz

Working with Generic Types

Using some standard generic types
Creating generic functions
Creating generic interfaces
Creating generic type aliases
Creating generic classes
Implementing generic parameter defaults
Implementing generic parameter constraints
Quiz

Type Narrowing

Using type assertions
Using the non-null assertion operator
Using a `typeof` type guard
Using an `instanceof` type guard
Using an `in` operator type guard
Using a user-defined type guard with a type predicate
Using a user-defined type guard with an assertion signature
Understanding the discriminated union pattern
Quiz

Querying and Mapping Types

Using `typeof` to infer a type
Using `keyof`
Creating a mapped type
Using mapped type modifiers
Quiz

Creating Conditional Types

Creating a basic conditional type
Inferring types in a conditional type
Creating some standard conditional utility types
Quiz

Creating immutable types

Understanding the `readonly` modifier
Creating readonly objects and array properties
Using `Object.freeze`
Creating readonly function parameters
Creating deep immutable types
Quiz

Configuring the compiler

Installing and running the compiler
Compiling specific files
Controlling transpilation
Emitting source maps
Controlling type checking against standard libraries
Controlling type checking strictness
Controlling code quality options
Quiz

Using Babel, ESLint and Webpack with TypeScript

An example app
Using Babel with TypeScript
Using ESLint with TypeScript
Using Webpack with TypeScript
Quiz

Course Summary

Course Summary

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Using `keyof`

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