Check out all our TypeScript tutorials.
Have you ever seen your app behave strangely just because someone entered the wrong date? For example, a user might type “2025-02-30”, which is not even a real date or the used date format is not valid for the app’s date settings. These small issues can cause big problems if we don’t handle them properly. … Read more >>
When working with TypeScript, it’s crucial to understand the difference between undefined and null. Both undefined and null are used to represent the absence of a value, but they have distinct meanings and behaviors. In this tutorial, we’ll dive deep into the difference between undefined and null in TypeScript, explore their use cases, and provide … Read more >>
While building an admin panel, when an admin selects a user, their details are fetched from the server and stored in a userInfo object. But sometimes, the server returns an empty object ({}), meaning no user was found. Understanding how to perform this check efficiently can prevent potential bugs and improve your application’s performance. We … Read more >>
Imagine you work in a coffee shop and want to write a program to handle coffee orders. You create an enum to list coffee sizes like Small, Medium, and Large. Then, you write a function that takes a size from this enum and gives the correct price. Using enums helps make sure only the correct … Read more >>
When comparing values in TypeScript, developers have two options: the loose equality operator (==) and the strict equality operator (===). Although they may seem similar, there are crucial differences between these operators that every TypeScript developer should understand. In this tutorial, we’ll dive deep into how == different from === in TypeScript, explore their loose … Read more >>
As a developer, you may often encounter scenarios where you need to calculate the difference between two dates. Whether you’re building a calendar app, a scheduling system, or any other application that involves date manipulation, knowing how to subtract dates is crucial. In this tutorial, I will explain how to subtract dates in TypeScript, along … Read more >>
While building a feature for a client project, I needed to log data from the previous day. That meant figuring out how to get yesterday’s date in TypeScript. It sounds simple, but it needs to be done right, especially when dealing with time zones or edge cases. In this tutorial, I’ll explain how to calculate … Read more >>
While building a form where users enter their name, you need to ensure that the input they provide is a string before proceeding. Sometimes, the data might be accidentally passed as a number, array, or even an object due to dynamic input sources like APIs or form parsing. To ensure that the user is providing … Read more >>
While working on a TypeScript project, I had to send user details over the network. The user data had to be sent in a byte format instead of plain strings. I had to convert strings to byte arrays in TypeScript for this requirement. In this tutorial, I will explain how to convert a string to … Read more >>
When working with key-value pairs in TypeScript, developers often face a choice between using the Record utility type and the Map data structure. While both serve similar purposes, they have distinct differences in terms of syntax, usage, and performance. In this tutorial, we’ll explore the difference between record vs map in TypeScript in detail, providing … Read more >>
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