Check out all our TypeScript tutorials.
While working on a TypeScript project, I had an enum that listed different user roles, such as Admin, Editor, and Viewer. I wanted to display all these roles in a drop-down menu on the webpage. To achieve this, I needed a way to retrieve all the values from the enum so I could loop through … Read more >>
When working on a large-scale TypeScript project, I got some runtime errors, all due to incorrect type usage. TypeScript adds static types to JavaScript, but just using it isn’t enough; you need to understand how its type-checking features work to catch bugs early and write safer code. In this tutorial, I’ll explain the different ways … Read more >>
While working on TypeScript, you may need to check if a variable is undefined to avoid errors in your code. For example, if you attempt to use a variable that has no value, your program may not function correctly. So, it’s important to know how to test if a variable is undefined before using it. … Read more >>
When working with TypeScript, one of the fundamental aspects to understand is variable declaration. The two primary keywords used for this purpose are let and var. While they might seem similar at first glance, they have significant differences that can impact the behavior of your code. This tutorial aims to provide a detailed comparison between … Read more >>
While working on a TypeScript project, I needed to display dates in the American format (MM/DD/YYYY) instead of the default ISO format (YYYY-MM-DD). TypeScript’s built-in Date object and the toLocaleString() method make this easy and no external libraries required. In this blog, I’ll show you how to format date as MM/DD/YYYY in TypeScript using toLocaleString(), … Read more >>
TypeScript, a superset of JavaScript, introduces static typing to the JavaScript ecosystem, enabling developers to catch errors early and write more maintainable code. Among the powerful features of TypeScript are types and interfaces, both of which allow you to define the shape of an object. However, choosing between them can be confusing for newcomers. In … Read more >>
Recently, while working on a TypeScript project, I needed to find a date a few days before an important event, like when to start preparing or send reminders. If I had changed the dates directly, it could have caused issues in the code. So, I created a reusable function that subtracts days using TypeScript’s Date … Read more >>
While working on a TypeScript project, I needed to store values in an object where the keys represented different user roles, such as Admin, Editor, and Viewer. Instead of using plain strings (which can cause typos or mistakes), I used a TypeScript enum to define the roles. This made the code more readable, safer, and … Read more >>
When I was working on a TypeScript project recently, I needed to calculate dates a few days ahead, like setting deadlines or scheduling reminders. At first, I wasn’t sure how to easily add days to a date without messing up the original date or dealing with complex date math. To solve this, I created a … Read more >>
While working on a TypeScript project, you receive data from an API as an object. Before using any property from that object, you want to make sure the key actually exists to avoid errors. For example, you want to display the user’s email, but you’re not sure if the email key is present in the … Read more >>
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