Create a unique number with javascript time

Question

I need to generate unique id numbers on the fly using javascript. In the past, I\'ve done this by creating a number using time. The number would be made up of the four digi

Answer 1

I have done this way

function uniqeId() {
   var ranDom = Math.floor(new Date().valueOf() * Math.random())
   return _.uniqueId(ranDom);
}