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Evaluate expression given as a string
... edited May 23 '17 at 11:55
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answered Nov 16 '09 at 17:55
HarlanHarlan
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What's an easy way to read random line from a file in Unix command line?
What's an easy way to read random line from a file in Unix command line?
13 Answers
13...
How do I “Add Existing Item” an entire directory structure in Visual Studio?
...ng set of files not affiliated with any C# project at all that reside in a complicated nested directory structure.
17 Answe...
Getting value of select (dropdown) before change
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Combine the focus event with the change event to achieve what you want:
(function () {
var previous;
$("select").on('focus', function () {
// Store the current value on focus and on change
previous =...
MySQL: Fastest way to count number of rows
...tely after the data selecting query.
In conclusion, everything actually comes down to how many entries you have and what is in the WHERE statement. You should really pay attention on how indexes are being used, when there are lots of rows (tens of thousands, millions, and up).
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How can an html element fill out 100% of the remaining screen height, using css only?
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Maven2: Missing artifact but jars are in place
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undefined reference to boost::system::system_category() when compiling
I'm trying to compile a program on Ubuntu 11.10 that uses the Boost libraries. I have the 1.46-dev Boost libraries from the Ubuntu Repository installed, but I get an error when compiling the program.
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Download JSON object as a file from browser
...ot jQuery here):
var dataStr = "data:text/json;charset=utf-8," + encodeURIComponent(JSON.stringify(storageObj));
var dlAnchorElem = document.getElementById('downloadAnchorElem');
dlAnchorElem.setAttribute("href", dataStr );
dlAnchorElem.setAttribute("download", "scene.json");
dlAnchorElem.c...
Clean code to printf size_t in C++ (or: Nearest equivalent of C99's %z in C++)
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Most compilers have their own specifier for size_t and ptrdiff_t arguments, Visual C++ for instance use %Iu and %Id respectively, I think that gcc will allow you to use %zu and %zd.
You could create a macro:
#if defined(_MSC_VER...