Retrieve unique id by javascript

Retrieve unique id by javascript

This task use javascript to generate id which is unique in page.

Retrieve unique id using Math.random

var uniqid_list = new Array();
function uniqid() {
    var id = 'E' + Math.floor(Math.random() * 100000);
    while (uniqid_list.indexOf(id) >= 0) {
        id = 'E' + Math.floor(Math.random() * 100000);
    }
    uniqid_list.push(id);
    return id;
}
    

JavaScript