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typescript-first-steps

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Companion site & code exercises for the Frontend Masters course “TypeScript First Steps”

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# TypeScript First Steps

_Jump-start your TypeScript journey with this friendly, practical intro from Anjana Vakil._

---

This is a companion repository for the [TypeScript First Steps](https://frontendmasters.com/courses/typescript-first-steps/) course on Frontend Masters.
[![Frontend Masters](https://static.frontendmasters.com/assets/brand/logos/full.png)](https://frontendmasters.com/courses/typescript-first-steps/)

### Links

- Course website: [anjana.dev/typescript-first-steps](https://anjana.dev/typescript-first-steps)
- Repo with slides & exercises: [github.com/vakila/typescript-first-steps](https://github.com/vakila/typescript-first-steps)
- Fullstack project: [github.com/vakila/event-me](https://github.com/vakila/event-me)

## Overview
  This course will equip you with the key concepts & skills you’ll need to become proficient with the TypeScript language, and acquaint you with the production-grade tooling, workflows, and resources you’ll want to accelerate your productivity and career growth.

By taking this course, you'll:
  - Understand how TypeScript differs from JavaScript, and the advantages TS offers
  - Install & configure TS in a new or existing codebase
  - Add type annotations to variables, function arguments & return values
  - Work with custom types & interfaces, including complex types, unions & generics
  - Get acquainted with popular libraries from the open-source TS ecosystem
  - Set up your professional workflow for full-stack TS development

## What's this course all about? 
  TypeScript is the industry’s preferred way to bring some order to the notorious unpredictability of JavaScript’s weak typing, allowing us to write more stable, production-ready web apps. In this course, we’ll get to know TypeScript through hands-on refactoring exercises, as we use increasingly complex TS features to stabilize a buggy JS app. Beyond exploring the language itself, we’ll also get familiar with popular TS tooling and workflows for full-stack development. By the end of the course, you’ll be a productive TypeScript developer ready to deepen your knowledge with further courses on FrontendMasters.

## Who is this course for?

- Are you comfortable with JavaScript, and looking to add TypeScript to your pro web developer skillset?
- Are you a JS developer who’s sick of encountering silly errors like misspelled method names or un-awaited Promises, and ready to invest in making your apps more reliable?
- Have you tried working with or learning TypeScript before, but found it overwhelming and frustrating?
- Did you learn some TS in the past, and want to review the fundamentals and learn practical tools & workflows for TS development?
	
If any or all of those are true, this is the perfect course for you!

## Prerequisites:

- JavaScript: From First Steps to Professional or intermediate experience with JavaScript
	
## What we'll cover in this course:

### TypeScript: What? Why? How?

- Types in JS & the problems TS solves
- How TS & JS are related
- Installing TS & setting up
- Moving gradually from JS to TS

### Core TS concepts & syntax

- Annotating types in TS files
- Using primitive & built-in types (e.g. DOM)
- Defining custom types & interfaces
- Composing & manipulating types

### Full-stack TS workflows

- Configuring the TS compiler
- Installing, importing & exporting types
- Ensuring end-to-end type safety
- Exploring the TS ecosystem

## Slides

- [0-intro](https://anjana.dev/typescript-first-steps/0-intro/slides)
- [1-javascript](https://anjana.dev/typescript-first-steps/1-javascript/slides)
- [2-annotations](https://anjana.dev/typescript-first-steps/2-annotations/slides)
- [3-compiler](https://anjana.dev/typescript-first-steps/3-compiler/slides)
- [4-workflow](https://anjana.dev/typescript-first-steps/4-workflow/slides)
- [5-ecosystem](https://anjana.dev/typescript-first-steps/5-ecosystem/slides)
- [6-outro](https://anjana.dev/typescript-first-steps/6-outro/slides)

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