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.idea/ (0, 2023-10-11)
.idea/basic_languages.iml (563, 2023-10-11)
.idea/modules.xml (282, 2023-10-11)
.idea/vcs.xml (167, 2023-10-11)
dart/ (0, 2023-10-11)
dart/0.hello.dart (41, 2023-10-11)
dart/0.operator.dart (337, 2023-10-11)
dart/1.type/ (0, 2023-10-11)
dart/1.type/1.basic.type.dart (576, 2023-10-11)
dart/1.type/1.complex.type.dart (664, 2023-10-11)
dart/1.type/1.declare.const.dart (1246, 2023-10-11)
dart/1.type/1.declare.variable.dart (805, 2023-10-11)
dart/2.control_flow/ (0, 2023-10-11)
dart/2.control_flow/2.if.dart (408, 2023-10-11)
dart/2.control_flow/2.switch.case.dart (505, 2023-10-11)
dart/3.loop/ (0, 2023-10-11)
dart/3.loop/3.for.dart (975, 2023-10-11)
dart/3.loop/3.while.dart (804, 2023-10-11)
dart/4.function/ (0, 2023-10-11)
dart/4.function/4.1.traditional.function.dart (541, 2023-10-11)
dart/4.function/4.2.defaultValue.function.dart (444, 2023-10-11)
dart/4.function/4.3.optionalArgument.function.dart (409, 2023-10-11)
dart/4.function/4.4.arrow.lambda.function.dart (499, 2023-10-11)
dart/5.class/ (0, 2023-10-11)
dart/5.class/5.List/ (0, 2023-10-11)
dart/5.class/5.List/5.list.dart (1648, 2023-10-11)
dart/5.class/5.Map/ (0, 2023-10-11)
dart/5.class/5.Map/5.map.dart (995, 2023-10-11)
dart/5.class/5.Set/ (0, 2023-10-11)
dart/5.class/5.Set/5.set.dart (342, 2023-10-11)
dart/5.class/5.abstract.extend.dart (3065, 2023-10-11)
dart/5.class/5.concrete.class.dart (980, 2023-10-11)
dart/6.exception/ (0, 2023-10-11)
dart/6.exception/6.exception.dart (413, 2023-10-11)
dart/testunit/ (0, 2023-10-11)
dart/testunit/.metadata (1668, 2023-10-11)
... ...

## A. Basic Dart ### 1. Cài t Dart trên Ubuntu - Tham kho: [Cài t Dart](https://dart.dev/get-dart) - Follow chính xác các bc sau y, **khng b 1 lnh nào**: ``` 81: $ sudo apt-get update 81: $ sudo apt-get install apt-transport-https 81: $ wget -qO- https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo gpg --dearmor -o /usr/share/keyrings/dart.gpg 81: $ echo 'deb [signed-by=/usr/share/keyrings/dart.gpg arch=amd64] https://storage.googleapis.com/download.dartlang.org/linux/debian stable main' | sudo tee /etc/apt/sources.list.d/dart_stable.list ``` ``` 81: $ sudo apt-get update 81: $ sudo apt-get install dart ``` ``` 81: $ export PATH="$PATH:/usr/lib/dart/bin" ``` - Thay i PATH cho future terminal sessions ``` 81: $ echo 'export PATH="$PATH:/usr/lib/dart/bin"' >> ~/.profile ``` ### 2. Vit code vi Dart - **Khi vit code, cu lnh phi kt thúc bng du chm phy (;)** - Tham kho: [Dart basic syntax](https://www.raywenderlich.com/books/dart-apprentice/v1.0/chapters/1-hello-dart) ### 3. Biên dch và chy file dart - M termial và chy cu lnh ``` 81: $ dart run ``` - Ví d: ``` 81: $ dart run hello.dart --> Hello, Dart! ``` ### 4. Note - **T khóa var: Ch c gán bin cho giá tr cùng kiu** - **T khóa dynamic: Gán thoi mái** - [Label to break loop more accurately](https://www.tutorialspoint.com/dart_programming/dart_programming_loops.htm) - [Final và const trong dart](https://linhta.dev/blog/final-va-const-trong-dart/#update) - **mixin** khác class thng thng ch: - mixin khng có constructor nên khng th to i tng. - mixin ch có th s dng implements hoc with ch khng th extends - mixin có th gii hn nhng class nào c phép s dng code ca mình bng t khóa mixin on - **import 'dart:collection';** to use **HashMap, HashSet, LinkedList ...** ## A1. Objective-C ### Set up instruction & Syntax - [**Introduction & Syntax URL of Obj-C**](https://www.tutorialspoint.com/objective_c/index.htm) ## A2. Swift ### Set up instruction & Syntax - [**Introduction & Syntax URL of Swift**](https://www.tutorialspoint.com/swift/index.htm) ## A3. Kotlin ### Set up instruction & Syntax - [**Introduction & Syntax URL of Kotlin**](https://www.tutorialspoint.com/kotlin/index.htm) - [**Install & execute instruction**](https://kotlinlang.org/docs/command-line.html#snap-package) 1. Using snap with Ubuntu version >= 16.0 ``` sudo snap install --classic kotlin ``` 2. Compile with command line ``` ../kotlin$ kotlinc .kt -include-runtime -d .jar ``` 3. Using java complier to execute the results from **.jar** file ``` ../kotlin$ java -jar .jar ``` ## B. Basic TypeScript from beginning #### Install TypeScript ```npm install -g typescript``` #### Check version of TypeScript ```tsc -v``` #### Compile & Run ```tsc .ts && node .js``` #### nodemon * Khi code thay i, h thng t cp nht li code và build li ngay cho dev, khng cn tt i và ```node app.js``` li ln na #### Shell to run * yarn: yarn dev * npm: npm start ## C. Learning nodeJS from beginning ... ### Set up * Create a **package**.json, using **npm init** * Set port number, using **http.createServer( ... ).listen()** * Reference at: [Node.js and Express.js - FreeCodeCamp](https://www.youtube.com/watch?v=Oe421EPjeBE) --- * Install nodejs package to global computer: **sudo npm install -g **

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