Category: React

MongoDB Filtering on Reference Fields When working with MongoDB, it is common to have documents that reference other documents through fields. These reference fields allow for more complex data relationships and can be useful for organizing and querying data. In this blog post, we will explore how to filter MongoDB documents based on reference fields…

No metadata for “TasksRepository” was found in NestJS typeORM postgres When working with NestJS and TypeORM in a PostgreSQL database, you may encounter the error message “No metadata for ‘TasksRepository’ was found”. This error typically occurs when the entity metadata for the repository is not properly defined or imported. In this blog post, we will…

How do I use an existing type as the argument types of a function? When working with TypeScript, it’s common to define custom types to represent specific data structures or objects. These types can then be used throughout your codebase to ensure type safety and improve code readability. However, there may be scenarios where you…

How to Have Multiple Object Field Types in Record Type Inferred by Function Arguments When working with TypeScript, you may come across a situation where you need to define a record type with multiple object field types inferred by function arguments. In this blog post, we will explore different solutions to achieve this. Solution 1:…

When hiding the tabBar on specific screen, it displays gray area at the bottom of page on Expo app If you are using React Navigation in your Expo app and you are facing a gray area at the bottom of the page when hiding the tabBar on a specific screen, you are not alone. This…

How to Download ICS (iCal) File Periodically without Too Much Duplicate? Using TypeScript, you can easily download ICS (iCal) files periodically without creating too much duplicate. In this blog post, we will explore two solutions to achieve this. Solution 1: Using setInterval The first solution involves using the setInterval function to periodically trigger the download…

How to access the Unhandled Error in AppInsightsErrorBoundary onError prop with Application Insights in React If you are using TypeScript in your React application and have integrated Application Insights for error tracking, you might have come across the need to access the unhandled error in the AppInsightsErrorBoundary component’s onError prop. In this blog post, we…

Can TypeScript Objects be Extended? As a TypeScript developer, you may have wondered if it is possible to extend objects in TypeScript. The answer is yes, TypeScript objects can be extended. In this blog post, we will explore different ways to extend TypeScript objects and provide code snippets for each solution. 1. Using Object.assign() One…

Trouble learning React Class components with generics React is a popular JavaScript library used for building user interfaces. It provides a way to create reusable UI components that can be composed together to build complex applications. One of the features introduced in React is the use of class components, which allow for more advanced functionality…