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Getting a better understanding of callback functions in JavaScript
I understand passing in a function to another function as a callback and having it execute, but I'm not understanding the best implementation to do that. I'm looking for a very basic example, like this:
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Git: fatal: Pathspec is in submodule
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Removing the directory from git and adding it again worked for me:
git rm --cached directory
git add directory
This works if you purposefully removed the .git directory because you wanted to add directory to your main git project. In my specific case, ...
remove None value from a list without removing the 0 value
...mbda x: x is not None, L) -- You could get rid of the lambda using partial and operator.is_not I think, but it's probably not worth it since the list-comp is so much cleaner.
– mgilson
Apr 19 '13 at 3:36
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what does -webkit-transform: translate3d(0,0,0); exactly do? Apply to body?
...rocessing unit
(GPU) to make pixels fly. Web applications, on the other hand, run in
the context of the browser, which lets the software do most (if not
all) of the rendering, resulting in less horsepower for transitions.
But the Web has been catching up, and most browser vendors now provide...
Why does integer overflow on x86 with GCC cause an infinite loop?
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When the standard says it's undefined behavior, it means it. Anything can happen. "Anything" includes "usually integers wrap around, but on occasion weird stuff happens".
Yes, on x86 CPUs, integers usually wrap the way you expect. This...
How to hide action bar before activity is created, and then show it again?
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Setting android:windowActionBar="false" truly disables the ActionBar but then, as you say, getActionBar(); returns null.
This is solved by:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
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UICollectionView reloadData not functioning properly in iOS 7
...I'm not sure if I can explain more. After searching, researching, testing and probing. I feel this is an iOS 7 bug. Forcing the main thread will run all UIKit related messages. I seem to run into this when popping to the view from another view controller. I refresh the data on viewWillAppear. I ...
Ruby optional parameters
...his method: e.g. If you're trying to make the default value for scope true and you pass in false, scope ||= true won't work. It evaluates the same as nil and will set it to true
– Joshua Pinter
Nov 10 '11 at 5:32
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How do I properly compare strings in C?
...trying to get a program to let a user enter a word or character, store it, and then print it until the user types it again, exiting the program. My code looks like this:
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How many characters can UTF-8 encode?
... bytes to encode. This covers the remainder of almost all Latin alphabets, and also Greek, Cyrillic, Coptic, Armenian, Hebrew, Arabic, Syriac and Tāna alphabets, as well as Combining Diacritical Marks.
Three bytes are needed for characters in the rest of the Basic Multilingual Plane, which con...