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TypeScript Setup

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typescript

TypeScript Setup

What is TypeScript Setup?

Setting up TypeScript involves installing the compiler, configuring project settings, and compiling TypeScript code into JavaScript.

Install TypeScript

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1
npm install -g typescript

Check Version

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tsc -v

Initialize Project

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tsc --init

tsconfig.json Example

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{
  "compilerOptions": {
    "target": "ES6",
    "module": "commonjs",
    "strict": true,
    "outDir": "./dist"
  }
}

Compile TypeScript

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tsc app.ts

Watch Mode

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tsc --watch

Project Structure

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project/
├── src/
│   └── app.ts
├── dist/
├── tsconfig.json
└── package.json

Best Practices

  • Use tsconfig.json for configuration
  • Enable strict mode
  • Organize code in src folder
  • Use watch mode for development

Common Mistakes

  • Not using tsconfig.json
  • Ignoring strict mode
  • Compiling files manually every time
  • Incorrect folder structure

Conclusion

Setting up TypeScript properly ensures efficient development, better code organization, and improved type safety.

Try it yourself

let msg: string = 'Hello TS';
console.log(msg);

Test Your Knowledge

Q1
of 3

Install command?

A
npm install ts
B
npm install typescript
C
npm install -g typescript
D
ts install
Q2
of 3

Config file?

A
package.json
B
tsconfig.json
C
config.ts
D
app.json
Q3
of 3

Compile command?

A
node
B
tsc
C
npm run
D
compile

Frequently Asked Questions

How to install TypeScript?

Use npm install -g typescript.

What is tsconfig.json?

It is the configuration file for TypeScript.

What is tsc?

TypeScript compiler command.

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ts introduction

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ts syntax

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