JSFiddle - React, Tailwind, and code Playground

JavaScript

var itemp = ["#jpId1", "#jpId2", "#jpId3", "#jpId4", "#jpId5", "#jpId6", "#jpId7","#jpId8", "#jpId9", "#jpId10", "#jpId11"];
id_arr=Array();
for (var i = 0; i < 5; i++) {
    var r = itemp[Math.floor(Math.random() * itemp.length)];
    if($.inArray(r, id_arr)>-1)
    {
        alert ("duplicate "+r+", hence discarded");
        i--;
        continue;
    }
    else
        id_arr.push(r);
    alert(r);
}
console.log(id_arr)