interview-code-js

A collection of small JavaScript/TypeScript exercises and utilities. The repository is organized by year/month folders and contains self-contained examples (many with simple console-based tests) used for interview preparation and practice. A minimal TypeScript entry point is provided.

Stack detection

• Language: TypeScript (primary) and JavaScript (examples)
• Runtime: Node.js
• Package manager: npm (package-lock.json present)
• Build tool: TypeScript compiler (tsc)
• Frameworks: none (plain Node + TS/JS)

Entry points

• Library/app main (per package.json): dist/index.js built from src/index.ts.
  • Current src/index.ts logs a greeting. Build first, then run with Node.
• Many standalone example files live under src/com/interview/code/js/....
  • JavaScript examples (.js) can be run directly with Node from the repo root, e.g.:
    • node src/com/interview/code/js/2025/july/test2/test3.js
  • TypeScript examples (.ts) require compilation to JS or a TS runner (see notes below).

Requirements

• Node.js and npm installed
  • TODO: Document the exact Node.js version used/developed against (e.g., LTS 18/20)

Setup

1. Install dependencies
   • npm install
2. Build TypeScript → JavaScript
   • npm run build

How to run

• Run the compiled main entry after building:
  • node dist/index.js
• Run a specific JavaScript example directly (no build needed):
  • node src/com/interview/code/js/2025/july/test2/test3.js
• Run a TypeScript example file (options):
  • Option A: Compile whole project then execute the compiled file from dist (paths mirror src).
    • npm run build
    • node dist/com/interview/code/js/2025/july/test3/test1.js
  • Option B: Use ts-node (not currently in devDependencies) to execute TS directly.
    • npx ts-node src/com/interview/code/js/2025/july/test3/test1.ts
    • TODO: Add ts-node and a script to package.json for convenience.

npm scripts

• build: Compiles TypeScript using tsc to dist/.

Environment variables

• None required for current examples.
• TODO: If any future modules require configuration, document env vars here.

Tests

• No formal test framework is configured yet.
• Several files contain inline console-based test runners (e.g., runTests() in src/com/interview/code/js/2025/july/test2/test3.js). Run them with Node as shown above.
• TODO:
  • Pick a test framework (e.g., Jest, Vitest, or Mocha) and add it to devDependencies.
  • Add npm scripts like test, test:watch, and minimal sample tests.

Project structure (abridged)

• src/
  • index.ts — main TypeScript entry
  • com/interview/code/js/ — collections of exercises/examples organized by year/month
    • 2025/july/test2/test3.js — example with simple data structures and an inline test runner
    • 2025/july/test3/test1.ts — TypeScript example
    • ... many more (feb, march, june, july, etc.)
• dist/ — build output (created by npm run build)
• tsconfig.json — TypeScript compiler configuration (outDir: dist, module: commonjs)
• package.json — package metadata and scripts

Development notes

• The TypeScript compiler is configured with:
  • strict: true
  • module: commonjs
  • target: es2016
  • outDir: dist
  • include: ["src"]
• JavaScript files under src/ are not emitted by tsc unless allowJs is enabled (not currently set). They can still be run directly with Node from src.
• TODO: Consider adding allowJs: true if you want .js files also copied/emitted to dist during builds.

License

• No license file currently found.
• TODO: Add a LICENSE file and specify the license in package.json.