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Difference between val() and text()

... .val() works on input elements (or any element with a value attribute?) and .text() will not work on input elements. .val() gets the value of the input element -- regardless of type. .text() gets the innerText (not HTML) of all the matched el...
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Why is the use of alloca() not considered good practice?

alloca() allocates memory on the stack rather than on the heap, as in the case of malloc() . So, when I return from the routine the memory is freed. So, actually this solves my problem of freeing up dynamically allocated memory. Freeing of memory allocated through malloc() is a major headache an...
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Comma in C/C++ macro

... Because angle brackets can also represent (or occur in) the comparison operators <, >, <= and >=, macro expansion can't ignore commas inside angle brackets like it does within parentheses. (This is also a problem for square brackets and braces, e...
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How do you change Background for a Button MouseOver in WPF?

I have a button on my page with this XAML: 6 Answers 6 ...
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How to use sed to remove the last n lines of a file

... share | improve this answer | follow | edited Feb 20 '14 at 11:50 laalto 131k3030...
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Delete all but the most recent X files in bash

Is there a simple way, in a pretty standard UNIX environment with bash, to run a command to delete all but the most recent X files from a directory? ...
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Taking screenshot on Emulator from Android Studio

I know this probably might be the silliest question but still, I don't know how to take a screenshot of Emulator via Android Studio. I recently switched from Eclipse to Android Studio and I could not find it anywhere, I tried to search on web too but no help. ...
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How to make a floated div 100% height of its parent?

...nt, and have #inner base its height on that, make both elements absolutely positioned. More details can be found in the spec for the css height property, but essentially, #inner must ignore #outer height if #outer's height is auto, unless #outer is positioned absolutely. Then #inner height will be...
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What is a good Hash Function?

What is a good Hash function? I saw a lot of hash function and applications in my data structures courses in college, but I mostly got that it's pretty hard to make a good hash function. As a rule of thumb to avoid collisions my professor said that: ...
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Parsing a JSON string in Ruby

I have a string that I want to parse in Ruby: 8 Answers 8 ...