JSFiddle - React, Tailwind, and code Playground

JavaScript

function generateGuid() {
    var result, i, j;
    result = '';
    for(j=0; j<32; j++) {
        if( j == 8 || j == 12|| j == 16|| j == 20)
            result = result + '-';
        i = Math.floor(Math.random()*16).toString(16).toUpperCase();
        result = result + i;
    }
    return result;
}
alert (generateGuid());