Category: TypeScript

Throw new Error – ‘new’ expression, whose target lacks a construct signature Published on JS Duck If you have encountered the error message “throw new Error – ‘new’ expression, whose target lacks a construct signature” while using TypeScript, don’t worry, you’re not alone. This error typically occurs when you try to instantiate an object using…

Return value depends on argument typescript When working with TypeScript, you may come across a scenario where the return value of a function depends on the type of argument passed to it. In this blog post, we will explore different solutions to handle this situation. Solution 1: Using function overloading Function overloading allows you to…

NestJS, TypeScript, and TypeORM Error: Error During Migration Run If you’re working with NestJS, TypeScript, and TypeORM, you may encounter an error during migration run that can be frustrating to debug. In this blog post, we’ll explore the possible causes of this error and provide multiple solutions to help you resolve it. Possible Causes There…

Inconsistency in Bitshifting Numbers Across Platforms in TypeScript and Rust Bitshifting is a common operation in programming languages that allows you to manipulate binary data at the bit level. However, when working with TypeScript and Rust, you may encounter inconsistencies in the behavior of bitshifting operations across different platforms. In this article, we will explore…

Prisma include results (select related) compatible with TypeScript? When working with Prisma and TypeScript, you might come across a situation where you need to include related results using the include method. In this blog post, we will discuss how to use the include method in Prisma to fetch related data and ensure compatibility with TypeScript.…

Chutzpah can’t find Typescript Jasmine tests in VS 2022 Test Explorer If you are using TypeScript with Jasmine for your unit tests in Visual Studio 2022, you may encounter an issue where Chutzpah, the test runner, is unable to find your TypeScript Jasmine tests in the Test Explorer. This can be frustrating, but fortunately, there…

Typescript: Generating an Interface Object from Another Interface Using keyof, but Renaming the Key Using a String Concatenation As a TypeScript developer, you may often come across situations where you need to generate a new interface object from an existing interface. TypeScript provides a powerful feature called keyof that allows you to extract keys from…

Sequelize not working correctly with TypeScript If you’re working with TypeScript and Sequelize, you may have encountered some issues with the integration of these two technologies. In this blog post, we will explore some common problems and provide solutions to help you get Sequelize working correctly with TypeScript. 1. Incorrect type definitions One common issue…

Does Playwright Test support globalThis? (TypeScript/JavaScript) When working with Playwright Test, you may come across the need to access the globalThis object. The globalThis object provides a way to access the global scope, regardless of the environment (browser or Node.js). However, due to the differences in how Playwright Test runs tests, there are some considerations…

SyntaxError: Unexpected token ‘:’ in TypeScript file using Next.js If you are encountering a SyntaxError: Unexpected token ‘:’ in your TypeScript file while using Next.js, don’t worry, you are not alone. This error is usually caused by a mismatch between the version of TypeScript you are using and the version supported by Next.js. To resolve…