All Questions
24,197,322
questions
27285
votes
25
answers
1.9m
views
Why is processing a sorted array faster than processing an unsorted array?
In this C++ code, sorting the data (before the timed region) makes the primary loop ~6x faster:
#include <algorithm>
#include <ctime>
#include <iostream>
int main()
{
// ...
- 501k
26498
votes
109
answers
14.5m
views
How do I undo the most recent local commits in Git?
I accidentally committed the wrong files to Git, but didn't push the commit to the server yet.
How do I undo those commits from the local repository?
20374
votes
41
answers
11.7m
views
How do I delete a Git branch locally and remotely?
Failed Attempts to Delete a Remote Branch:
$ git branch -d remotes/origin/bugfix
error: branch 'remotes/origin/bugfix' not found.
$ git branch -d origin/bugfix
error: branch 'origin/bugfix' not found....
13855
votes
37
answers
3.5m
views
What is the difference between 'git pull' and 'git fetch'?
What are the differences between git pull and git fetch?
- 285k
12945
votes
52
answers
3.4m
views
What does the "yield" keyword do in Python?
What functionality does the yield keyword in Python provide?
For example, I'm trying to understand this code1:
def _get_child_candidates(self, distance, min_dist, max_dist):
if self._leftchild and ...
- 146k
11971
votes
155
answers
12.8m
views
How can I remove a specific item from an array in JavaScript?
How do I remove a specific value from an array? Something like:
array.remove(value);
Constraints: I have to use core JavaScript. Frameworks are not allowed.
- 133k
11672
votes
41
answers
5.5m
views
How can I rename a local Git branch?
How can I rename a local branch which has not yet been pushed to a remote repository?
Related:
Rename master branch for both local and remote Git repositories
How do I rename both a Git local and ...
- 126k
11579
votes
39
answers
3.9m
views
Which JSON content type do I use?
There are many "standards" for the JSON content type:
application/json
application/x-javascript
text/javascript
text/x-javascript
text/x-json
Which one do I use, and where? I assume ...
- 238k
11391
votes
38
answers
5.7m
views
How do I undo 'git add' before commit?
I mistakenly added files to Git using the command:
git add myfile.txt
I have not yet run git commit. How do I undo this so that these changes will not be included in the commit?
- 157k
10166
votes
26
answers
1.0m
views
What is the '-->' operator in C/C++?
After reading Hidden Features and Dark Corners of C++/STL on comp.lang.c++.moderated, I was completely surprised that the following snippet compiled and worked in both Visual Studio 2008 and G++ 4.4. ...
9714
votes
54
answers
8.7m
views
How do I force "git pull" to overwrite local files?
How do I force an overwrite of local files on a git pull? My local repository contains a file of the same filename as on the server.
error: Untracked working tree file 'example.txt' would be ...
- 102k
9577
votes
62
answers
3.6m
views
9442
votes
31
answers
1.9m
views
What and where are the stack and heap?
What are the stack and heap?
Where are they located physically in a computer's memory?
To what extent are they controlled by the OS or language run-time?
What is their scope?
What determines their ...
- 94.5k
8840
votes
9
answers
782k
views
Why does HTML think “chucknorris” is a color?
Why do certain random strings produce colors when entered as background colors in HTML?
For example, bgcolor="chucknorris" produces a red background:
<body bgcolor="chucknorris"> ...
- 88.2k
8696
votes
44
answers
8.8m
views
How do I check out a remote Git branch?
Somebody pushed a branch called test with git push origin test to a shared repository. I can see the branch with git branch -r. How do I check out the remote test branch? I've tried:
git checkout ...
- 90.5k