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Are tuples more efficient than lists in Python?
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180
The dis module disassembles the byte code for a function and is useful to see the difference bet...
How to unstash only certain files?
...e git checkout or git show to restore a specific file.
git checkout stash@{0} -- <filename>
With Git 2.23+ (August 2019), use git restore, which replaces the confusing git checkout command:
git restore -s stash@{0} -- <filename>
That does overwrite filename: make sure you didn't have l...
Multiple queries executed in java in single statement
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140
I was wondering if it is possible to execute something like this using JDBC.
"SELECT FROM * TAB...
How to get the first element of an array?
...
like this
alert(ary[0])
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How do I retrieve the number of columns in a Pandas data frame?
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edited Nov 30 '13 at 7:22
answered Nov 30 '13 at 7:11
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How to convert a std::string to const char* or char*?
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1091
If you just want to pass a std::string to a function that needs const char* you can use
std:...
How can I auto increment the C# assembly version via our CI platform (Hudson)?
...ementing assembly version numbers and we frequently ship assemblies with 1.0.0.0 versions. Obviously, this causes a lot of headaches.
...
How do I parse JSON with Objective-C?
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With the perspective of the OS X v10.7 and iOS 5 launches, probably the first thing to recommend now is NSJSONSerialization, Apple's supplied JSON parser. Use third-party options only as a fallback if you find that class unavailable at runtime.
So, for exampl...
Convert a number range to another range, maintaining ratio
...) + NewMin
Or if you want to protect for the case where the old range is 0 (OldMin = OldMax):
OldRange = (OldMax - OldMin)
if (OldRange == 0)
NewValue = NewMin
else
{
NewRange = (NewMax - NewMin)
NewValue = (((OldValue - OldMin) * NewRange) / OldRange) + NewMin
}
Note that in this...
How do you read CSS rule values with JavaScript?
...(className) {
var cssText = "";
var classes = document.styleSheets[0].rules || document.styleSheets[0].cssRules;
for (var x = 0; x < classes.length; x++) {
if (classes[x].selectorText == className) {
cssText += classes[x].cssText || classes[x].style.cssText...