How to generate unique id's, without knowing other id's?
31718
Generating a globally unique identifier in Java
38580
Selecting elements with exotic id
53625
Duplicate id in list
37079
How to automatically generate N "distinct" colors?
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jQuery clone duplicate IDs
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Simple proof that GUID is not unique
136100
How do I generate a random string?
45067
How unique is UUID?
17186
How to get only the unique results without having to sort data?
11374
Do Atmega328 chips have pseudo-unique IDs?
56261
Creating random numbers with no duplicates
104351
Unique random string generation
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How good is Java's UUID.randomUUID?
40508
How to generate Sudoku boards with unique solutions
16730
iPhone/iPad unique identifier BESIDES UUID/UDID?
100462
How to generate a random, unique, alphanumeric string?
6835
How to access HTML element without ID?