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Ignore files that have already been committed to a Git repository [duplicate]
...hanges) than what you want to do is:
git update-index --assume-unchanged <file>
If you wanna start tracking changes again
git update-index --no-assume-unchanged <file>
See git-update-index(1) Manual Page.
Also have a look at the skip-worktree and no-skip-worktree options for updat...
HTML5: number input type that takes only integers?
...
The best you can achieve with HTML only (documentation):
<input type="number" min="0" step="1"/>
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How to print instances of a class using print()?
... - but it works.
If no __str__ method is given, Python will print the result of __repr__ instead. If you define __str__ but not __repr__, Python will use what you see above as the __repr__, but still use __str__ for printing.
...
How can I set a website image that will show as preview on Facebook?
...nclude the Open Graph XML namespace extension to your HTML declaration
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:fb="http://ogp.me/ns/fb#">
2. Inside your <head></head> use the following meta tag to define the image you want to use
<meta property="og:image" co...
How to initialise memory with new operator in C++?
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Please don't confuse default-initialized with value-initialized: They are both clearly defined in the standard and are different initializations.
– Deduplicator
Oct 5 '14 at 16:45
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How do I get the name of captured groups in a C# Regex?
...od:
public static class MyExtensionMethods
{
public static Dictionary<string, string> MatchNamedCaptures(this Regex regex, string input)
{
var namedCaptureDictionary = new Dictionary<string, string>();
GroupCollection groups = regex.Match(input).Groups;
s...
How do I override __getattr__ in Python without breaking the default behavior?
...method on a class to do something fancy but I don't want to break the default behavior.
3 Answers
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How to simplify a null-safe compareTo() implementation?
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Using Java 8:
private static Comparator<String> nullSafeStringComparator = Comparator
.nullsFirst(String::compareToIgnoreCase);
private static Comparator<Metadata> metadataComparator = Comparator
.comparing(Metadata::getName, nullSafeS...
How do I read any request header in PHP
...ly need a single header, instead of all headers, the quickest method is:
<?php
// Replace XXXXXX_XXXX with the name of the header you need in UPPERCASE (and with '-' replaced by '_')
$headerStringValue = $_SERVER['HTTP_XXXXXX_XXXX'];
ELSE IF: you run PHP as an Apache module or, as of PHP 5.4,...
Use of “global” keyword in Python
...l is only useful to change or create global variables in a local context, although creating global variables is seldom considered a good solution.
def bob():
me = "locally defined" # Defined only in local context
print(me)
bob()
print(me) # Asking for a global variable
The above w...