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What does the smiley face “:)” mean in CSS?

...wsers. Also there's a hack for <= IE 8: div { color: blue; /* All browsers */ color: purple\9; /* IE8 and earlier */ *color: pink; /* IE7 and earlier */ } However that's not a good idea, they don't validate. You always feel free to work with Conditional comments for targeting...
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How are parameters sent in an HTTP POST request?

...nt in the request body, in the format that the content type specifies. Usually the content type is application/x-www-form-urlencoded, so the request body uses the same format as the query string: parameter=value&also=another When you use a file upload in the form, you use the multipart/form-...
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Two submit buttons in one form

... Normally, all inputs in the form are sent with the form. Since a button's value is submitted only if clicked, you'd have to search the form values for these pre-defined names. I think the other answer (stackoverflow.com/a/21778...
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Regular expression \p{L} and \p{N}

...This syntax is specific for modern Unicode regex implementation, which not all interpreters recognize. You can safely replace \p{L} by {a-zA-Z} (ascii notation) or {\w} (perl/vim notation); and \p{N} by {0-9} (ascii) or {\d} (perl/vim). If you want to match all of them, just do: {a-zA-Z0-9}+ or {\w\...
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django unit tests without a db

... doesn't require the db to set up. And while it is fast to setup a db, I really don't need it in some situations. 11 Answer...
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How do I localize the jQuery UI Datepicker?

I really need a localized dropdown calendar. An English calendar doesn't exactly communicate excellence on a Norwegian website ;-) ...
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Entity Framework: How to disable lazy loading for specific query?

...ed Aug 14 '15 at 14:13 William BallesterosWilliam Ballesteros 98188 silver badges88 bronze badges ...
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Find difference between timestamps in seconds in PostgreSQL

... tausiftausif 33211 gold badge33 silver badges1111 bronze badges ...
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Loaded nib but the 'view' outlet was not set

...s are right, but as I'm a newcomer it took me a little while to figure out all the steps to do that. Here's what worked for me: Open the XIB file causing problems Click on file's owner icon on the left bar (top one, looks like a yellow outlined box) If you don't see the right-hand sidebar, click o...
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What is the difference between Θ(n) and O(n)?

...e of the algorithm as n gets larger is at most proportional to g(n). Normally, even when people talk about O(g(n)) they actually mean Θ(g(n)) but technically, there is a difference. More technically: O(n) represents upper bound. Θ(n) means tight bound. Ω(n) represents lower bound. ...