Check out all our TypeScript tutorials.
In this tutorial, I will explain how to check the type of a variable in TypeScript. As a dull stack developer, you will frequently get this kind of requirement. Let me show you some examples of various methods to do this. Check the Type of a Variable in TypeScript TypeScript enhances JavaScript by adding type … Read more >>
As a web developer, you should know how to set default values in TypeScript interfaces. TypeScript interfaces do not directly support default values; several techniques exist to achieve this. In this tutorial, I will explain how to use default values in TypeScript interfaces. TypeScript Interfaces TypeScript interfaces allow you to define the shape of an … Read more >>
Recently, while working on a TypeScript project, I got an error that says, “Property does not exist on type.” I tried different solutions to fix it. In this tutorial, I will explain how to fix the common TypeScript error “Property does not exist on type.” Property Does Not Exist on Type Error in TypeScript The … Read more >>
In a TypeScript workshop, someone asked about the difference between type and interface in TypeScript. In this tutorial, I will explain the differences between type and interface in TypeScript. TypeScript, a superset of JavaScript, introduces static types to enhance code quality and developer productivity. Two fundamental constructs for defining types are type and interface. While … Read more >>
In this tutorial, I will explain how to fix a TypeScript error, “TypeError: is not a function.” I will explain its root causes and solutions to help you debug your code. We will explore various scenarios and provide practical examples to fix the error. TypeError: “is not a function” The “TypeError: is not a function” … Read more >>
In a webinar, someone asked about passing functions to TypeScript interfaces. I explained with some examples. In this tutorial, I will explain how to add functions to interfaces in TypeScript. What is an Interface in TypeScript? An interface in TypeScript is a way to define the shape of an object. It allows you to specify … Read more >>
Generics in TypeScript help to create reusable and type-safe code. Here, I will explain the concept of generic anonymous functions in TypeScript. In this tutorial, I will explain how to master TypeScript generic anonymous functions. What are Generics in TypeScript? Generics in TypeScript allow you to create components that can work with a variety of … Read more >>
In this tutorial, I will explain how to use optional function parameters in TypeScript. Optional parameters allow you to make some parameters optional when defining functions. Let me explain this with some examples. What Are Optional Parameters in TypeScript Function? In TypeScript, optional parameters are parameters that are not required when calling a function. You … Read more >>
Arrow functions provide a syntax for writing functions in JavaScript and TypeScript, making your code cleaner and more readable. Specifying return types in TypeScript ensures type safety and helps catch errors early during development. In this tutorial, I will explain how to specify the return type in TypeScript arrow functions. What Are Arrow Functions in … Read more >>
Recently, one of my team members struggled to find out how to return multiple values in TypeScript. There are various methods to do it. In this tutorial, I will explain how to return multiple values from a function in TypeScript with examples. Why Return Multiple Values in TypeScript? In many real-world applications, a function may … Read more >>
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