Installing TSLint

We'll install TSLint in this section, along with a Visual Studio Code extension that will highlight linting problems right in the code:

1. Let's install TSLint globally via npm, as follows:

npm install -g tslint

1. Now, we can open Visual Studio Code and go to the extensions area (Ctrl + Shift + X) and type tslint in the search box at the top-left. The extension is called TSLint and was published by egamma:

1. We need to click the Install option to install the extension.
2. After it has been installed, we'll need to reload Visual Studio Code for the extension to become enabled.

Now that this extension is installed, along with TSLint globally, linting errors will be highlighted right in our code, as we'll see in the following sections.