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Postgres unique constraint vs index

... is it actual info? especially about partial indexes – anatol Feb 20 '19 at 6:30 1 ...
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What is the best JavaScript code to create an img element

...t in the background and doesn't display anything. The image element will call a tracking URL (such as Omniture) and needs to be simple and robust and work in IE 6 =< only. Here is the code I have: ...
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What is the most useful script you've written for everyday life? [closed]

...e so popular :p As for how - Microsoft exposes a nice little API feature called Hooks. Using that hook; I was able to write a "filter" that did what I needed it to do (hint: if you return 1 with your callback windows will not process the keystroke). The reason I know about this actually is not be...
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Why does the order of the loops affect performance when iterating over a 2D array?

... x[1][0] etc... Meaning that you're hitting them all in order. Now look at the 1st version. You're doing: x[0][0] x[1][0] x[2][0] x[0][1] ...
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Can Android do peer-to-peer ad-hoc networking?

... For example, I would like to have one phone broadcast a message, and have all peers in the network receive the broadcast, without having a server. I would like to use wifi since bluetooth range is more limited. ...
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Python str vs unicode types

...the proper encoding format, as we don't know which one is being used internally to represent the unicode value. – Caumons Aug 3 '13 at 15:45 10 ...
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Putting git hooks into repository

... I generally agree with Scytale, with a couple additional suggestions, enough that it's worth a separate answer. First, you should write a script which creates the appropriate symlinks, especially if these hooks are about enforcing ...
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When to use the JavaScript MIME type application/javascript instead of text/javascript?

...sniffing on the script to determine type (I'm not sure if any browsers actually do this though); b. browsers use other information—the including page's encoding and in some browsers the script charset attribute—to determine the charset. So any proxy that tried to transcode the resource would br...
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Prevent users from submitting a form by hitting Enter

...be some issues with the users hitting enter (I don't know why) and accidentally submitting the survey (form) without clicking the submit button. Is there a way to prevent this? ...
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How do I echo and send console output to a file in a bat script?

...ct any stream with prepending the number like 2&gt; err.txt and it is also allowed to redirect multiple streams in one line. dir 1&gt; files.txt 2&gt; err.txt 3&gt; nothing.txt In this example the "standard output" will go into files.txt, all errors will be in err.txt and the stream3 will go into...