How to generate short uid like “aX4j9Z” (in JS)

Question

For my web application (in JavaScript) I want to generate short guids (for different objects - that are actually different types - strings and arrays of strings)

I w

Answer 1

just randomly generate some strings:

function getUID(len){
    var chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789',
          out = '';

    for(var i=0, clen=chars.length; i