Check out all our TypeScript tutorials.
As a TypeScript developer working on a project, I recently encountered a scenario where I needed to sum up the values of an array. In this tutorial, I will explain how to calculate the sum of an array in TypeScript. This is a common task in many applications, such as calculating total sales, aggregating data, … Read more >>
As a TypeScript developer, you might get requirements to reverse an array. There are various methods to do this. In this tutorial, I will explain how to reverse an array in TypeScript with some examples. Reverse an Array in TypeScript Let me show you how to reverse an array in TypeScript using different methods and … Read more >>
Today, we will discuss an interesting topic in TypeScript. In this tutorial, I will explain how to clear a typed array in TypeScript while preserving its original type. Clear an Array in TypeScript While Preserving Its Type Let’s say we have an array of a custom type called Person in our TypeScript code: Now, suppose … Read more >>
In this tutorial, I will explain how to find the length of an array in TypeScript. As a developer, you may often need to determine the number of elements in an array for various purposes, such as iterating over the array, checking if the array is empty, or performing specific operations based on the array … Read more >>
During a live webinar, someone recently asked about removing an item from an array in TypeScript. There are various methods to do this. In this tutorial, I will explain how to remove an item from an array in TypeScript. We’ll discuss different approaches, such as using the splice(), filter(), and shift() methods, along with practical … Read more >>
One of my team members recently asked about getting the last element of an array in TypeScript. I suggested a few methods. In this tutorial, I will explain how to get the last element of an array in TypeScript with some real examples. Get the Last Element of an Array in TypeScript Arrays in TypeScript … Read more >>
Recently, I got a situation where I needed to access the first item in a TypeScript array. TypeScript provides several ways to accomplish this. In this tutorial, I will explain how to get the first element of an array in TypeScript using different methods with examples. Let me show you each method with examples. 1. … Read more >>
As a TypeScript developer, you should always ensure that your arrays are properly checked for null or empty values, which can prevent numerous bugs and runtime errors. In this tutorial, I will explain how to check if an array is null or empty in TypeScript using various methods with examples. Check if an Array is … Read more >>
Recently, I got a requirement to clean up data or process user input. We can do this using built-in JavaScript methods and TypeScript features. In this tutorial, I will explain how to remove empty strings from an array in TypeScript. The Problem Let’s say you have an array of names that includes some empty strings: … Read more >>
In this tutorial, I will explain how to check if an array is not empty in TypeScript. When processing JSON responses or working with arrays in TypeScript, it’s important to know how to safely check if a variable is an array and is not empty. Let me explain the details with some real-world examples. Using … Read more >>
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