Template literal throws errors in some scenarios but not others
Issue As part of a code review a colleague recommended using a type rather than an enum. Whilst making the…
Category: Typescript
Allowing a class that inherits from an abstract class to return undefined
Issue I have an abstract class that looks like this: // step.ts import { AllowedStepNames } from "./interfaces"; abstract class…
Select single property of generic TypeScript interface to pass in as variable in method argument
Issue I’m having some difficulties defining a method which allows only 1 property of a TypeScript interface to be passed…
Custom React hook receiving typescript error on useReducer state value
Issue I’m trying to write a fetch helper hook in typescript. I am getting a typescript error noted in the…
Is it possible to add description to an array type in Typescript?
Issue I have the following type(s): const type Person = [string, number, number] const type Person = [ string, //…
Type specificity in conditional type
Issue I’m trying to type properties of the React component in a way that when one of the properties has…
How to disable subfolder importing from my npm package
Issue I develop an npm package with: typescript webpack webpack.config: {… entry: ‘./src/index.ts } library tree: – package.json – src…
Class cannot implement TypeScript interface when using static methods
Issue TypeScript recognises static class methods as valid properties that adhere to an interface when passing the class object as…
Typing "this" inside a function/object passed as parameter
Issue I’m trying to achieve a function that takes a set of functions and force their type (they will be…
Is it a good practices to add tests files in the tsconfig.json exclude field?
Issue I often see “exclude”: [“**/*.test.ts”, “**/*.test.tsx”] in project tsconfig file. Sometimes there is a tsconfig.json without this but another…