User Interaction Prediction With Pure JavaScript – Premonish.js

Just another JavaScript library for realtime mouse position prediction that predicts which DOM element an user will interact with next.

See also:

• JavaScript Library For Mouse Position Tracking And User Input Prediction – Trial.js
• Mouse Position Prediction Library – mpredict.js

How to use it:

Just install the Premonish.js in your project and we’re ready to go.

$ npm install premonish

Initialize the Premonish by creating a new Premonish object.

var premonish = new Premonish({
    // an array of selectors
    selectors: [], 
    // an array of DOM elements
    elements: []
    
});

Predict the user interaction.

premonish.onIntent(({el, confidence}) => {
  // el is the expected DOM element
  // confidence is a score from 0-1 on how confident we are in this prediction.
});

Stop the mouse position prediction.

premonish.stop();

Use the onMouseMove callback to look at some of the internal calculations that premonish is making.

premonish.onMouseMove(({ position, velocity, expected }) => {
  // Each value is an object { x: number, y: number }.
  // `expected` is the approximate point premonish thinks the
  // user is moving the mouse to.
});