Development of a service for learning English words

The page was written for personal purposes, for education. After downloading the site, the user can choose a dictionary to study and start training. In the course of training there are several options of introduction: text or the choice of the answer from the proposed. The app also offers to set any parameters when starting the training. For example, you can set a response time limit, indicate Levenstein’s distance to answer “H correct” or set any delays. In the interface there are animations that improve the user experience.
Technology stock - jQuery, Node.js (to obtain dictionaries), MySQL