https://github.com/ozzie-code-alt/typescript

Recap
https://github.com/ozzie-code-alt/typescript

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Recap

• Host: GitHub
• URL: https://github.com/ozzie-code-alt/typescript
• Owner: Ozzie-code-alt
• Created: 2023-08-24T16:36:57.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2024-08-26T16:01:53.000Z (2 months ago)
• Last Synced: 2024-08-26T18:57:38.623Z (2 months ago)
• Language: TypeScript
• Homepage:
• Size: 14.6 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md

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README

        
# Course Notes

Typescript is created at Microsoft used to address the shortcommings of Javascript 

TS: Adds these features 

- Static Typing --> important one

- Code completion 

- Refactoring 

- Shorthand notations

Static Means that variables are noticed at compile time. Like no "Hoisting"  -- C++, C#, JAVA -- type is determined

Dynamic Means that variablles are noticed at runtime , and can change soo there is "Hoisting"  -- JS, Python, Ruby -- type is not determined 

# Typesctipt is basically js with typecheking

# Drawbacks of Typescripts :  

Compilations -- we have to give our TS file to compiler , we call this Transpilation  

Disciplined in coding 

# Get Typescript version 

`tsc -v` in cmd 

# compile ts 

`index.ts 'File'` in cmd to compile it to js

# ts Config  `tsc --init`

- target 

- module 

- rootDir 

- outDir 

- removeComments 

- noEmitOnError

- sourceMap

# Debugging 

- add a breakpoint 

- go to debug panel and click `create a launch.json file`

- instantiate launch.json and add this underneath program `"preLaunchTask": "tsc: build - tsconfig.json",` 

- then start debugging 

# typescript have more datatype than the old ones like : String, Number. boolen, null, undefined. object 

they are : 

- any  - Any can represent any type of values, basically this is an approach on how we can dynamically program in TS

- unknown 

- never

- enum -

- tuple - tuples are only usefull with key/value pairs. Limit it to 2 

# Advanced Types 

- Nullable

- Unkknown type

- never type  

# Tutorial Link 

https://www.youtube.com/watch?v=d56mG7DezGs