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1500 questions
1434
votes
19 answers

How do I remove a single file from the staging area (undo git add)?

Situation: I have a Git repository with files already in the index. I make changes to several files, open Git and add these files to my staging area with "git add ." Question: How do I remove one of those files from the staging area but not remove…
PHLAK
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1433
votes
11 answers

How do I move a file in Python?

How can I do the equivalent of mv in Python? mv "path/to/current/file.foo" "path/to/new/destination/for/file.foo"
David542
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1431
votes
24 answers

What is the difference between MVC and MVVM?

Is there a difference between the standard "Model View Controller" pattern and Microsoft's Model/View/ViewModel pattern?
Bjorn Reppen
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1430
votes
23 answers

What is the use of "assert" in Python?

What does assert mean? How is it used?
Hossein
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1429
votes
29 answers

How to align content of a div to the bottom

Say I have the following CSS and HTML code: #header { height: 150px; } The header section is fixed height, but the header content may change. I…
kristof
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1429
votes
24 answers

How to compare a local Git branch with its remote branch

How can I see the diff between a local branch and a remote branch?
mrblah
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1428
votes
23 answers

How to do case insensitive string comparison?

How do I perform case insensitive string comparison in JavaScript?
flybywire
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  • 191
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  • 503
1425
votes
20 answers

How to extend an existing JavaScript array with another array, without creating a new array

There doesn't seem to be a way to extend an existing JavaScript array with another array, i.e. to emulate Python's extend method. I want to achieve the following: >>> a = [1, 2] [1, 2] >>> b = [3, 4, 5] [3, 4, 5] >>> SOMETHING HERE >>> a [1, 2, 3,…
Dzinx
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1424
votes
28 answers

Difference between require, include, require_once and include_once?

In PHP: When should I use require vs. include? When should I use require_once vs. include_once?
Scott B
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  • 266
1422
votes
33 answers

Maintain the aspect ratio of a div with CSS

I want to create a responsive div that can change its width/height as the window's width changes. Are there any CSS rules that would allow the height to change according to the width, while maintaining its aspect ratio? I know I can do this via…
jackb
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1421
votes
20 answers

.gitignore exclude folder but include specific subfolder

I have a folder application/, which I add to the .gitignore. Inside the application/-folder there is a folder application/language/gr. How can I include this folder? I've tried this: application/ !application/language/gr/
chchrist
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1421
votes
5 answers

What are the -Xms and -Xmx parameters when starting JVM?

Please explain the use of the Xms and Xmx parameters in JVMs. What are the default values for them?
Pankaj
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1420
votes
57 answers

pg_config executable not found

I am having trouble installing psycopg2. I get the following error when I try to pip install psycopg2: Error: pg_config executable not found. Please add the directory containing pg_config to the PATH or specify the full executable path with the…
user1448207
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1419
votes
12 answers

Tab key == 4 spaces and auto-indent after curly braces in Vim

How do I make vi-Vim never use tabs (converting spaces to tabs, bad!), makes the tab key == 4 spaces, and automatically indent code after curly brace blocks like Emacs does? Also, how do I save these settings so I never have to input them…
mmcdole
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1418
votes
12 answers

How do I diff the same file between two different commits on the same branch?

In Git, how could I compare the same file between two different commits (not contiguous) on the same branch (master for example)? I'm searching for a compare feature like the one in Visual SourceSafe (VSS) or Team Foundation Server (TFS). Is it…
systempuntoout
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