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Detecting touch screen devices with Javascript
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+1 for doing hover and click both. One other way could be using CSS media queries and using some styles only for smaller screens / mobile devices, which are the ones most likely to have touch / tap functionality. So if you have some specific st...
Difference between fprintf, printf and sprintf?
...lain in simple English about the differences between printf , fprintf , and sprintf with examples?
8 Answers
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Fragment is not being replaced but put on top of the previous one
...out file. You should create a container (e.g. a FrameLayout) in the layout and then add the fragment programatically using FragmentTransaction.
FragmentTransaction.replace expects the id of the container that contains the fragment and not the id of the fragment as the first parameter. So you should...
How to ALTER multiple columns at once in SQL Server
...e., so, whats the big deal, just use multiple ALTER TABLE ALTER COLUMN commands?
– KM.
Aug 12 '10 at 12:56
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What is the maximum size of a web browser's cookie's key?
...ant to support most browsers, I suggest keeping the name under 4000 bytes, and the overall cookie size under 4093 bytes.
One thing to be careful of: if the name is too big you cannot delete the cookie (at least in JavaScript). A cookie is deleted by updating it and setting it to expire. If the name...
How to call a PHP function on the click of a button
...ed a page called functioncalling.php that contains two buttons, Submit and Insert .
12 Answers
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How to clone an InputStream?
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If all you want to do is read the same information more than once, and the input data is small enough to fit into memory, you can copy the data from your InputStream to a ByteArrayOutputStream.
Then you can obtain the associated array of bytes and open as many "cloned" ByteArrayInputStreams...
Tools for analyzing performance of a Haskell program
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how to find out why this solution is so slow. Are there any commands that tell me where most of the computation-time is spend so I know which part of my haskell-program is slow?
Precisely! GHC provides many excellent tools, including:
runtime statistics
time profiling
heap profiling
t...
Why am I getting a “401 Unauthorized” error in Maven?
...f you supply the wrong credentials (password etc). You also get an error (and off the top of my head is also a 401) if you try to publish something to a releases repository and that version already exists in the repository. So you might find that by publishing from the command line it works, but t...
How do I remove objects from a JavaScript associative array?
...tances of Array, if you do not want to create a sparsely populated array - and you usually don't - then you should use Array#splice or Array#pop.
Note that the delete operator in JavaScript does not directly free memory. Its purpose is to remove properties from objects. Of course, if a property bei...