Calling Karma from inside the node_modules directory every time can be annoying. There are two ways to make this more pleasant: we can install Karma globally or we can add Karma to our npm scripts; we'll do both.
First, let's add Karma to our npm scripts. Go inside the package.json file and add the following block:
..."version": "1.0.0", "scripts": { "test": "./node_modules/karma/bin/karma start" },"devDependencies": {...
Now, you can type npm run test and Karma will automatically launch. The next thing we can do is install Karma globally with the following line:
npm install -g karma
Now we can write commands such as karma init and karma start, and they will be recognized. We can also edit our package.json, like this: ...
