Premise
TypeScript has changed the schemes, the first time I heard about it, I thought 🤔:
"Simple, just declare the data type and that's it"!
I soon realized it's not that simple! 😞
Things are not exactly like this and in any case, this logic applies to everything, variables, objects, functions, classes, etc., in short, it is another way of programming, it is another way of thinking, you have to completely change your approach!
Realization
The best ones can do amazing things with TypeScript, I think it has now become an essential tool for those who regularly use JavaScript!
I have developed some little projects in React, some simple applications, a blog, and I must admit that the idea of redoing everything with TypeScript scares me deeply! 😱
The secret to learning is to practice constantly! So, since I am constantly looking for work, I made this little application using JavaScript and TypeScript to see the newest job offers on the market!
Some examples.
For example, if you use axios package, in normal project, you simple need to import the package, in TypeScript you need also to import AxiosResponse to specify the type of the axios response, like this:
// Import axios
import axios, { AxiosResponse } from 'axios';
If you have an object, you need to describe the shape of it using ‘Interfaces’;
interface Job {
title: string;
description: string;
company: {
display_name: string;
};
location: {
display_name: string;
};
category: {
label: string;
};
contract_type: string;
created: string;
latitude: number;
longitude: number;
redirect_url: string;
salary_min: number;
salary_max: number;
}
Sure, the code becomes more robust, but it is easy to understand that in this way the code extends beyond measure, to be clear, it is not a criticism, but an simple observation!
Conclusions.
Slowly using TypeScript I have to admit that I start to like it and as I said before, I think it has become an essential tool, in fact I see it in job requests, before employers only asked for JavaScript, now they also ask for TypeScript!
In this video you can see my struggles with TypeScript.
Have a Good day! 👋
Top comments (1)
TypeScript does have a learning code and maybe you will be writing more code but it's worth it for the improvements that it brings.