TypeScript Configuration and Tooling

Understand tsconfig,build tools,and compiler options.

1. What is the default 'target' value in tsconfig.json if not specified in TypeScript 4.8+?

ES3 ES5 ES2015 ES2016

2. Which tsconfig option enables strict type-checking features like noImplicitAny, strictNullChecks, and others?

strict strictMode typeCheck enforceTypes

3. Which file is the primary configuration file for TypeScript projects?

.tsrc tsconfig.json typescript.config.js tsconfig.js

4. Which tool allows running TypeScript files directly without prior compilation to JavaScript?

ts-run ts-exec ts-node tsc-run

5. What is the file extension for TypeScript declaration files?

.ts.d .d.ts .type.ts .decl.ts

6. Which 'module' option in tsconfig.json is suitable for Node.js environments?

ESNext AMD CommonJS UMD

7. What does the 'outDir' option in tsconfig.json control?

Input directory for source files Output directory for compiled JavaScript Directory for declaration files Temporary build directory

8. Which tsconfig option prevents the compiler from generating output files?

noGenerate noOutput noEmit skipEmit

9. Which tool is used to integrate ESLint with TypeScript?

eslint-ts @typescript-eslint tslint-eslint eslint-plugin-typescript

10. What is the default module resolution strategy in TypeScript?

Classic Node Modern Browser

11. Which of the following are enabled when the 'strict' option is set to true in tsconfig.json? (Select all that apply)

noImplicitAny strictNullChecks allowJs alwaysStrict

12. Which tools are commonly used for formatting and linting TypeScript code? (Select all that apply)

Prettier TSLint @typescript-eslint dprint

13. Which tsconfig options affect module resolution? (Select all that apply)

moduleResolution baseUrl paths target

14. Which are valid values for the 'target' option in tsconfig.json? (Select all that apply)

ES3 ES2020 ESNext Latest

15. The 'include' option in tsconfig.json specifies files to exclude from compilation.

True False

16. TypeScript declaration files (.d.ts) contain executable code.

True False

17. tsc --watch recompiles TypeScript files automatically when changes are detected.

True False

18. What command compiles a TypeScript project using tsconfig.json settings?

19. Name the popular formatter for consistent TypeScript code style (one word)

20. What is the abbreviation for the TypeScript compiler (three letters)

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