UUID Function

by jessekinsman

HTML

<span id="uuid"></span><br/>
<br/>

<input id="generateUUID" type="button" value="getUUID"/>

JavaScript

function generateUUID() {
    var d = new Date().getTime();
    console.log(`d: ${d}`)
    var uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
    console.log(`c: ${c}`)
        var r = (d + Math.random()*16)%16 | 0;
        console.log(`r: ${r}`)
        d = Math.floor(d/16);
        return (c=='x' ? r : (r&0x3|0x8)).toString(16);
    });
    return uuid;
};

document.getElementById('generateUUID').onclick = function() {
    document.getElementById('uuid').innerHTML = generateUUID();
};

document.getElementById('uuid').innerHTML = generateUUID();