Migrating from JavaScript to TypeScript (from scratch)

Migrating from JavaScript to TypeScript (from scratch)

In this tutorial, we will talk about how to Switch from JavaScript to TypeScript . Scripts typically require some level of tinkering and tweaking to get the desired output. If written in JavaScript, developers have to remember the shape of input and output. I personally have to log output to recall what I’m getting as a response.

Scripts typically require some level of tinkering and tweaking to get the desired output. If written in JavaScript, developers have to remember the shape of input and output. I personally have to log output to recall what I’m getting as a response. By now, most of the JavaScript community is aware of the perks of switching to TypesScript. If you’d like a refresher, visit Serokell’s post

What are we making?

We are going to take input from the covid tracking api and format it in a slightly different way to prepare to graph it on a chart. Here is an example of a day’s US output

web-development javascript typescript nodejs programming

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In this lesson, we are going to learn about the basic structure of a TypeScript program and understand a few concepts of the compilation process. Then we will see how we can run the compiled JavaScript program using node and ts-node.