#TINYURL GENERATOR GENERATOR#
#TINYURL GENERATOR UPDATE#

#TINYURL GENERATOR UPDATE#

UPDATE 2: I put the formula for two mutually exclusive events above instead of 2 independent ones (as getting an 'a' the first time doesn't mean you can't get an 'a' the second time). The general idea I was after was using Ids in databases or other stores that can be used by phone or printed material, not a giant 16 byte guid.

#TINYURL GENERATOR GENERATOR#

Is it possible to make a custom unique id generator in a database, or would it be client side (which would be 2 possible reads first)? The answer I was after was rcar's, however Sklivvz's is also the answer to the 2nd part (an alternative). TinyURL is a URL shortening web service, which provides short aliases for redirection of long URLs. If you use Twitter, youll have noticed that Twitter automates tiny URL creation for URLs in tweets.

I really asked two questions here so I was cheating. Simply provide the URL and youll received the new, tiny URL in return. UPDATE: Here's the resulting article from this question What is the probability of a clash each time, and can anyone suggest a better way of doing it? static Random _random = new Random() īuilder.Append((char)_random.Next(97,123)) īuilder.Append(_random.Next(0,9).ToString()) Ĭonsole.WriteLine('clash: (' +n+ ')' +builder.ToString()) On average I get 40-50 clashes per million, however bare in mind the uid wouldn't be generated a million times at once, but probably only around 10-1000 times a minute. I'm interested in the clash rate and if the code below is a realistic simulation of anticipated clash rate you'd get from generating a hash.

'According to my calculations captain', that's 6 mutually exclusive events, although calculating the probability of a clash gets a little harder than P(A or B) = P(A) + P(B), as obviously it includes numbers and from the code below, you can see it works out whether to use a number or letter using 50/50. By clicking toolbar button, a will create shorten link for the page you are currently at. Suppose a tinyURL is 7 characters long and each character can be taken from following 62 alphabets. The simple uid I'm generating is - 6 characters: either a lowercase letter (a-z) or 0-9. Click and drag the fallowing link into your links toolbar. Making over a billion long URLs usable Serving billions of redirects per month. If you created a TinyURL with our Legacy Site and you want to update the URL it points to, you can redirect it from the old location to its new location. I'm writing a small article on humanly readable alternatives to Guids/UIDs, for example those used on TinyURL for the url hashes (which are often printed in magazines, so need to be short). is the original URL shortener that shortens your unwieldly links into more manageable and useable URLs.

Tinyurl generator