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

Using toString(36), slightly slow, here is the faster and unique solution:

new Date().getUTCMilliseconds().toString() +
"-" +
Date.now() +
"-" +
filename.replace(/\s+/g, "-").toLowerCase()