The primary features of using JavaScript in the PyCharm editor will be discussed in this section of the tutorial. PyCharm is oriented towards downloading a local copy of the JavaScript library when a user implements it through URL so that it can be utilised for code completion and analysis.

Take a look at the following JS implementation in PyCharm.

When you open this file on your browser, you will get the following output.

You can examine the external libraries loaded for each HTML or JavaScript file using PyCharm Editor's Settings settings. Look at the screenshot below for a better explanation.

However, you must keep in mind that unless you download and use a library, you cannot see it. Through a toolbox named JS Toolbox, PyCharm additionally offers support for many libraries that use JavaScript. Additionally, it contains a number of properties that are important for the setup of the JavaScript file. It has a number of options, including the Unit test suffix, the View suffix, the File suffix, the Search URL, and the specific Root directory.

Note: To be able to use all the JS features at its full potential, you should have a Professional version of the IDE.