Code Linting

Checking code is one of the essential steps. Angular CLI ships with the TSLint support and predefined set of rules in the tsconfig.json file.

ng lint

Default auto-generated project should contain no errors. You should see the following result in the console:

All files pass linting.

Let's try to ensure TSLint works as expected by modifying the /src/app/app.component.ts file. Just change single quotes with double quotes like below:

export class AppComponent {
  title = "app works!";

Now running ng lint should produce next output:

src/app/app.component.ts[9, 11]: " should be '
Lint errors found in the listed files.