Installing Node.JS

We’ve already briefly looked at classes in TypeScript and classes in JavaScript, so let’s delve a little deeper now. Since TypeScript is just JavaScript, with some added on bits, we can create a class as we normally would with the adding of types as you see below. However, we can overload our constructors to see…

We’ve already seen the standard data types in JavaScript and TypeScript. However, JavaScript allows for class, and we want to therefore be able to define a custom data type within TypeScript. Since JavaScript supports classes and object-oriented programming, so does TypeScript. You can explicitly describe this object’s shape using an interface declaration. Then, to define an object…

We’ve already talked about interfaces in TypeScript, some with our discussion on Custom Data Types. However, we can go further with what they can do. So we previously had an interface that looked something like: However, we might not want, or even need, all of those properties. Therefore, we can make some of them optional,…

We already looked at the very first script in TypeScript, but it buys us nothing new. So let’s look at how we can use typed variables, and how it will stop errors, on a simple scale. So if we want to expand on our first example, we might want to use a variable. Now TypeScript…

The tsconfig.json file specifies the root files and the compiler options required to compile a TypeScript project. So presence of a tsconfig.json file in a directory indicates that the directory is the root of a TypeScript project. Without that file, the compiler will continue to move up the directory hierarchy to fine the config file. There is also a…

You will need to install the TypeScript engine for you to use TypeScript. This is because your TypeScript code must be converted into JavaScript, so it needs a program called a transpiler to do the conversion to JavaScript so that a browser can run it. What does a Transpiler Actually Do? A transpiler is not…