You started your journey by setting up the WebdriverIO test tool, where you learned how to install the framework and its related dependencies and run a demo spec file. This was followed by methods to locate elements using the various selector strategies provided by WebdriverIO, which are essential to interacting with web elements.
Then you learned WebdriverIO APIs through very simple examples that enabled you to automate various user actions on located elements. You also learned useful assertion methods provided by WebdriverIO out of ...