Training: Typescript

Ref. TSCRIPT

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Duration:

2

days

Exam:

Not certifying

Level:

Fundamental

Funding:

Temptraining

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TypeScript Training

TypeScript Course: Master the TypeScript Language with Ease

TypeScript has become an essential language for Angular and Node.js application developers. If you want to take your JavaScript programming to the next level, our TypeScript course is for you. This TypeScript training will guide you from the basics to advanced concepts such as type checking, object manipulation, and the use of generics.

With a clear and gradual teaching approach, you will be able to write robust, maintainable code suitable for large applications. Don’t miss the opportunity to become comfortable with this programming language through our TypeScript training and stand out as a developer.

Participant profiles

Newcomers in Typescript but not beginners in Javascript

Objectives

At the end of this training, you will have a full understanding of all major concepts of Typescript, and you will know how these concepts are implemented

Prerequisites

To have experience with Javascript

Course content

Module 1. Introduction

What is TypeScript?
TypeScript Philosophy
Why Use TypeScript?
Using TypeScript

Module 2. The Basics of Variables

Declaring a Variable
Declaring Types in Untyped Code
Hoisting Variables
TypeScript Scope is JavaScript Scope
Switch Scope
The Multiple Methods of Declaring a String
String-Tagged Templates
What is a Number in TypeScript?
Booleans, Functions, and Objects
Avoiding `any` at Any Time Possible
Mutable and Immutable Arrays
Undefined Versus Null
Returning nothing with Void
The Primitive Type never
Unknown: A Better any
Literal Type to Narrow Primitive Type
Symbol and Unique Symbol
Casting to Change Type

Module 3. Comment

TypeScript’s Comments are like JavaScript’s with One Exception

Module 4. Enum

Enum With and Without Values
Accessing Enum Values
Speeding Up Enum
Merging and Adding Functionality to Enum

Module 5. Generic Type

Generic
Generic and Classes
Generic Constraint
Generic with Construction Functions
Generic Outside Class
Generic Comparison
Generic Inference
Generic Default
Generic and keyof

Module 6. Functions

Definition
Named and Anonymous Functions
Function and Inference Variables
Generic Return Type, Optional Parameter and Default Value
Functions in Classes
Function Relationship with “this”
Function and Inference Return Types
Overload Functions to Enrich your Definition
String Literal and Overload Function
Types of Function Headers

Module 7. Mapped Type

Definition and Usages
Immutable Data with Readonly
Partial
Nullable
Pick
Omit
Record
Extract
Exclude
ReturnType
Custom Mapped Type

Module 8. Objects

Introduction to TypeScript’s Many Objects
The Curly Braces Object
New Object
Lowercase vs UpperCase Object

Module 9. Index Signature

Definitions and Usages
String or Number Indexes
Members of the Same Type
Keys with Constants and Symbols

Module 10. Variables Advanced

Intersecting with Types, Interfaces, and Generics
Literal Type, Narrowing, and Const
Union with Types and Tagged Union
Const Assertion for Literal Values
Tuple For Type and Length Arrays
Casting to Change Type
keyof to Validate a Member’s Name
On How TypeScript Handles Variance
How to Narrow a Type with the in Operator
What is a Conditional Type?
TypeScript Inference
Set and Dictionary

Module 11. Exception

Creating an Exception
Catching Synchronous Exceptions
Catching Asynchronous Exceptions
Assertion Functions

Module 12. Alias

Aliases with the Structural Behavior of TypeScript
Aliases with Type
Aliases with Generic Types and Recursivity
The Differences between Type Aliases and Interfaces
Branded Alias

Module 13. Type Checking

Comparing Variables
Type Checking with typeof
Type Checking with instanceof
Type Checking and Interface with a Discriminator
Type Checking with Intersections
Type Checking an Interface with Custom User-Defined Type Guard
Optional Chaining and Optional Element Access
Nullish Coalescing
Assertion Functions

Module 14. Iterators

Iterating an Object’s Keys with For-In
Iterating an Object with Standard For/While
Iterating and the Asynchronous Loop

Module 15. Manipulating Objects and Array

Typing an Array
Array with a Skipped Value
Destructuring an Array
Destructuring an Object
The Spread Operator and Arrays
The Spread Operator and Objects
The Bang Operator

Documentation

Digital courseware included

Complementary courses

Angular | ANGULAR

Temptraining funding

ITTA is a partner of Temptraining, the continuing education fund for temporary workers. This training fund can subsidize continuing education for anyone who works for an employer subject to the Collective Work Agreement (CCT) Rental of services.

Additional information

Understanding TypeScript and Why to Adopt It in Your Projects

What is TypeScript?

TypeScript is a superset of JavaScript, designed to make the development of large applications more structured and maintainable. Simply put, TypeScript adds a layer of static typing that allows code to be checked before execution, making errors easier to detect and fix. If you wish to learn TypeScript, you will quickly discover that its approach offers greater robustness compared to JavaScript while remaining compatible with it.

Why TypeScript and Not JavaScript?

The question is often asked: why switch to TypeScript when JavaScript is so widespread? One of the answers lies in static typing. In JavaScript, variables are dynamically typed, which can lead to hard-to-spot errors. TypeScript, with its strict typing, allows you to define types in advance, which not only improves code readability but also error detection. Additionally, support for auto-completion and development tools makes TypeScript programming more enjoyable, especially on large codebases.

The Advantages of TypeScript

The advantages of TypeScript are not limited to error correction. Here are some key benefits:

Better maintainability: By specifying types, you can quickly understand the role of each variable in the code. This also makes team collaboration easier.
JavaScript compatibility: TypeScript compiles into JavaScript, meaning you can use it with any existing JavaScript project.
Rich development tools: Thanks to TypeScript, IDEs and code editors can provide advanced features such as auto-completion, increasing your productivity.
Optional typing: You can gradually start using TypeScript by adding type annotations where they are most useful.

TypeScript Training: What You Will Learn

In the TypeScript training, you will cover several essential concepts, starting with the basics of variables, static typing, and how TypeScript integrates into an existing JavaScript project.
Basics of Variables and Typing

The first module will teach you how to declare variables and use the different types available in TypeScript. You will also understand why it is important to avoid using the generic “any” type, which can quickly become a source of confusion in a project.

Generics and Advanced Functions

The module on generics will enable you to handle more flexible and reusable functions. You will see how to use them effectively with classes and functions. In parallel, you will explore the subtleties of functions in TypeScript, including function overloading and different return types.

Objects, Arrays, and Advanced Typing

One of TypeScript’s most powerful aspects lies in its ability to handle objects and arrays very precisely through mapped types. You will learn to use features such as Readonly or Partial to manipulate objects securely and efficiently.

Why Learn TypeScript?

Learning TypeScript is especially relevant for developers looking to create complex and maintainable applications. By choosing a TypeScript course, you will gain expertise that will save you time during development while improving the quality of your code.
TypeScript is not just a trend; it’s a powerful tool used by leading companies to improve the quality of their codebases.

If you’re looking to enhance your web development skills, TypeScript is a logical step after JavaScript. This TypeScript course will give you all the tools to master this programming language and integrate it effectively into your projects.

Learning TypeScript is a smart decision for any developer looking to improve productivity and project quality.