TypeScript

Ace your TypeScript certification with free practice questions covering types, interfaces, generics, decorators, modules, and async programming. Test your.

TypeScriptBy David ChenApr 24, 202642 min read
TypeScript
Learn Typescript - TypeScript study guide

Ignore TypeScript Error

  • Add the following remark before the line to disable the compiler error for that line:
    • // @ts-ignore
  • If you're experiencing a lint error, try the following:
    • error Do not use "@ts-ignore" because it alters compilation errors @typescript-eslint/ban-ts-comment
  • TL;DR: to ignore a line:
    • // eslint-disable-next-line @typescript-eslint/ban-ts-comment
    • // @ts-ignore
  • Add the following comment at the start of the file to disable type checking for the entire file:
    • // @ts-nocheck

TypeScript Operators

  • Arithmetic operators
  • Logical operators
  • Relational operators
  • Bitwise operators
  • Assignment operators
  • Ternary/conditional operator
  • String operator
  • Type Operator

Abstract Factory Design Pattern TypeScript

  • Cleaner code because the Single Obligation Principle (SRP) is followed, and the responsibility for creating the concrete product is passed to the concrete creation class rather than the client class.
  • It is ensured that products made by the same manufacturer class are compatible.
  • Cleaner code because the Single Obligation Principle (SRP) is followed, as the responsibility for creating the concrete product is passed to the concrete creator class rather than the client class.
  • The Open-Closed Principle ensures clean code because new product families can be introduced without affecting the current code.

Distinct TypeScript

  • {"id":1,"name":"red"}
  • {"id":2,"name":"yellow"}
  • {"id":3,"name":"green"}
  • {"id":4,"name":"blue"}
  • {"id":5,"name":"orange"}

Typescript Questions and Answers

  • In your tsconfig.json file, set resolveJsonModule to true.
  • In tsconfig.json, set esModuleInterop to true.
  • Import employee from β€˜./employee.json’ as a JSON file.
  • TypeScript will generate a js file with the same name as tsc filename.ts at runtime. Launch node filename.js to run the created js file.
  • With some content, a TypeScript file named helloworld.ts is created. To run helloworld.ts, simply type the following commands. tsc
  • Include the tsconfig.json file in the project.
  • Connect to a build tool.
  • All. js files should be replaced with. ts files.
  • Check for any errors.

TypeScript Practice Test Questions

Prepare for the TypeScript exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.

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About the Author

David ChenMS, CISSP, CEH, AWS-SAA, Azure Expert

Senior Cloud Architect & Cybersecurity Certification Trainer

Stanford University

David Chen holds a Master of Science in Computer Science from Stanford University and has earned over 25 professional certifications across AWS, Microsoft Azure, Google Cloud, cybersecurity, and enterprise architecture domains. He works as a solutions architect and now focuses on helping IT professionals pass cloud, security, and technical certification exams.