typescript-course's Introduction

TypeScript Course

Requirements

Optional: HTML, CSS, JS
Node.js and Npm
Console / Terminal Usage

Useful Commands

to transpile: tsc myfile.ts
- all files: tsc *.ts
- target Option: --target ES5
to execute your transpiled file: node myfile.js, because is js you can use it on whatever js enviroment

Considerations

Ts will generate an output JS, even with errors

More Info

(Typescript Github)[]
- typescript components
compile or transpile?

Tools:

TS PlayGround
Intellisense
typescript(npm or yarn)
Visual Studio
vsCode

You can Learn from this Code

- transpile a .ts file to .js file
- basics
    - hello world
    - strong typing
    - syntatic sugar
    - types or optional static type annotation
    - scope variables
    - avoid type juggling
    - type coercion
- types
- ts added optional static type annotation to js
- transform it in a strongly typed programming language

functions
objects
ambient declarations
interfaces
clases: Person.ts
enums
modules
generic types
file extension .d.ts, third libs compatibility
type coercion
tsconfig.json

Appendix

how to debuggin ts file with vs Code
configure tsconfig.json
how to configure ts compiler with visual studio Code
- go to "Open User Settings"
- go to settings.json at "typescript.sdk", by default the property has the value null
- obtain where is installed npm modules: npm root -g
- append the path with /typescript/lib as SDK path
to configure a build task
- to configure Tasks: Ctrl + shift + P > Tasks > Typescript
- to execute: Ctrl/cmd + Shift + B
how to ignore js outputs from ts

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