What is a Decorator? Start Implementing your own Typescript Method Decorators
It is a structural design pattern that lets you attach new behaviors to objects by placing these objects inside special wrapper objects that contain the behaviors (reference).
When we are using Typescript Method Decorators, they are higher-order functions that help us change method behavior or do something with the arguments.
Typescript method decorator definition: method decorator can be used to observe, modify, or replace a method definition (reference)
Now, let’s see how we can define a simple method decorator.
In order to run the Typescript code, we need to compile them using the Typescript compiler.
We need a tsconfig.json
file :
We have to enable the experimentalDecorators
. Also, the target should not be less than ES5
.
If you do not want to use a tsconfig
file you can pass these options directly:
tsc --experimentalDecorators // If you installed tsc globaly
npx tsc --experimentalDecorators // If you installed tsc in your current directory
Now by running tsc
in the current directory, the typescript files will compile to javascript files and we can run them using Node.
Looking to build dynamic, extensively featured, and full-fledged web applications? **[Hire NodeJs Developer](https://hourlydeveloper.io/hire-dedicated-node-js-developer/ "Hire NodeJs Developer")** to create a real-time, faster, and scalable...
ts-node one of the best tool for NodeJS-Typescript development but when comes to typescript it doesn't do the best job.
Logging With Decorators in TypeScript - Avoid tangled code by encapsulating cross-cutting concerns.
The main goal of this blog is to explain the “Architecture of Nodejs” and to know how the Nodejs works behind the scenes. Generally, most of the server-side languages, like PHP, ASP.NET, Ruby, and including Nodejs follows multi-threaded architecture. That means for each client-side request initiates a new thread or even a new process.
In this tutorial, you will learn how to install Node onto Ubuntu 19.04 Disco Dingo. We will cover installation from the default repositories and, for those wanting more recent releases, how to install from the NodeSource repositories.