TypeScript Mock Interview | Interview Questions for TypeScript Developers
Ғылым және технология
We're back with a new chapter of Turing Mock Interview where we take a look at technical interview questions that appear in TypeScript interviews. Watch the video to understand the concepts you must brush up on before sitting for a TypeScript test and interview. Let us know in the comments below which tech stack you'd like us to cover next.
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Пікірлер: 17
2:17 What is Typescript? 3:50 Components of Typescript (pretty much the same as first question) 5:35 Why should we use Typescript 7:11 Access Modifiers 8:23 What type did Typescript add to Javascript? 9:33 Difference between interface and type? 10:57 Generic types 12:03 Structural Typing 13:22 Private fields rules 14:24 Never vs unknown vs any 17:31 Declare keyword 18:52 What are ambients? (unanswered)
10:46 types cannot be extended, but they can be intersected to create new types. This should be mentioned when asked how types are different than interfaces.
@yeasinarafat2290
9 ай бұрын
You mean aggregating various types to create another type in the case of interface?
Ambient declarations are typically used to describe the shape of libraries that are written in JavaScript, so that you can use them in your TypeScript code with type checking and IDE support. They are defined in .d.ts files, which are TypeScript declaration files that contain only type information and no actual implementation code.
Always nice to see a fellow BR speaking English so well. 💪
Any allows you to perform any operation on a value without any type checking, whereas unknown requires you to perform type checking before performing any operations on the value. The 'never' keyword to make a variable of never type. Users can use the never type when they are sure about any situation that will never occur. For example, we can use the never as a return type when we are sure that the function will never return any value.
An ambient declaration is a way to tell the TypeScript compiler about the existence of a value that is not written in TypeScript, such as a global variable or a third-party library.
The intervieww has a very good knowledge of typescript. I was able to learn a lot from the video. Thank you for sharing the great video :)
Ambient declarations in TypeScript allow you to provide type information for external libraries, global variables, or other non-TypeScript code. To use ambient declarations, you create `.d.ts` files where you define the ambient types. These declaration files should be included in your TypeScript project so that the compiler can recognize and apply the type information. Overall, ambient declarations in TypeScript enable better type-checking and tooling support in projects that involve external entities.
Very Informative!!
Awesome.. Thank you so much it is very Usefull
Very well done.👍
@Turingcom
Жыл бұрын
Thank you! Cheers!
Useful video
can extends but it is not extends, it call Intersection. so it is not wrong if we say type can't extend.
Awesome. Turing 🥰🥰🥰🥰
@Turingcom
Жыл бұрын
Thanks for watching! :)