JSFiddle - React, Tailwind, and code Playground

HTML

<button>foo<button>

JavaScript

$('button').click((function() {
        var history = [],
            last = +new Date();

        return function(e) { 
            history.push(e.timeStamp - last);
            
            console.log(history[history.length - 1]);
            last = e.timeStamp;
        };
    }()));