TypeScript, like most other programming languages, allows developers to create variables to store different values. One of those variable types is the constant.
To declare a constant in TypeScript, you can use the const keyword.
Here is an example: [...]
Like many other programming languages, TypeScript gives developers access to generics. But what are they, and how and when to use them?
Generics make it simple to create reusable components. They allow developers to create a function, class, or [...]
A class is the fundamental building block of object-oriented programming languages like C# or Java. TypeScript also provides support for classes and gives developers access to such features as inheritance, encapsulation, and polymorphism.
In TypeScript, a class is an [...]
An array is one of the most frequently used foundational data structures in programming. But what is it exactly, and how does it work in TypeScript?
In TypeScript, an array is a structure that stores values in sequential order [...]
TypeScript, just like many modern object-oriented languages, allows a developer to create an interface. But what is it, and how to use it?
An interface is a contract structure that defines the syntax that a class or object must [...]
If you come from an object-oriented language like Java or C#, you may be surprised that JavaScript doesn't support the enum data type. Luckily, our favorite TypeScript supports it.
An enum allows the declaration of a set of related [...]
When developing TypeScript projects, developers often need to check the type of an entity. Luckily, this is easy to do.
This article shows how to check the type of:
A variable
An object
An interface
A class
An array [...]
When using TypeScript, developers often need to replace placeholders with values inside a string. This operation is called string interpolation.
To perform string interpolation in TypeScript, create a template literal like so:
const age = 20;
console.log(`Your age [...]
Nowadays, an arrow function is the default and easiest way to define a function in TypeScript and JavaScript. But how does it work exactly?
Here is an example of an arrow function in TypeScript:
const sum = (x: number [...]
Sometimes, a TypeScript developer wants to make an arrow function accept different types. That's where generic functions come into play.
To make an arrow function generic, you need to add a generic parameter to it like this:
const getX [...]