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What is the difference between declarative and procedural programming paradigms?

...gm, you describe a result or a goal, and you get it via a "black box". The opposite of imperative. Examples of programming languages which support the declarative programming paradigm: yacc Treetop SQL Regular Expressions lex XSLT markup, troff, CSS, VHDL Functional Functional programming emp...
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When should one use HTML entities?

... You could make the opposite argument though - &mdashes showing up correctly even if the headers are misconfigured makes it harder to detect there's a problem. – Pekka Mar 5 '13 at 20:00 ...
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How to disable typing special characters when pressing option key in Mac OS X? [closed]

...o download Ukulele from here: http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=ukelele In the application you can create a new keylayout using File -> New from current source. Pressing Option will show you in the place for Option-b a red colored key - meaning it's a dead key. Dou...
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How to show math equations in general github's markdown(not github's blog)

... symbols in general github markdown. Your best bet would be to find a website similar to yuml.me which can generate on-the-fly images from by parsing the provided URL querystring. Update I've found some sites providing users with such service: codedogs.com (no longer seems to support embedding) ...
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How to post data to specific URL using WebClient in C#

...e manner as DownloadString. byte[] bret = client.UploadData("http://www.website.com/post.php", "POST", System.Text.Encoding.ASCII.GetBytes("field1=value1&field2=value2") ); string sret = System.Text.Encoding.ASCII.GetString(bret); More: http://www.daveamenta.com/2008-05/c-...
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How do I get the opposite (negation) of a Boolean in Python?

For the following sample: 7 Answers 7 ...
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Is there a use-case for singletons with database access in PHP?

...using PHP PDO Would singleton be a good design pattern for a microblogging site? Modifying a class to encapsulate instead of inherit How to access an object from another class? Why Singletons have no use in PHP The Clean Code Talks - Singletons and Global State If, after the above, you still need ...
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Multiple Updates in MySQL

...nserted. what should id do? because i am fetching information from another site which maintains tables with id's. I am inserting values with respect to that id. if the site has new records then i will end up inserting only the ids and count except all other information. if and only if there is an en...
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Overcoming “Display forbidden by X-Frame-Options”

... I had a similar issue, where I was trying to display content from our own site in an iframe (as a lightbox-style dialog with Colorbox), and where we had an server-wide "X-Frame-Options SAMEORIGIN" header on the source server preventing it from loading on our test server. This doesn't seem to be ...
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Git: How to return from 'detached HEAD' state

...t 1.87.1 warning: unable to unlink web/sites/default/default.settings.php: Permission denied ... other warnings ... Note: checking out '1.87.1'. You are in 'detached HEAD' state. You can look around, make experimental changes and commit them, and you can discard ...