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What's the purpose of git-mv?
From what I understand, Git doesn't really need to track file rename/move/copy operations, so what's the real purpose
of git mv ? The man page isn't specially descriptive...
...
How do I skip an iteration of a `foreach` loop?
... nom. You don't need to break/continue
// since all the fruits that reach this point are
// in available baskets and tasty.
}
}
share
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impro...
Why does jQuery or a DOM method such as getElementById not find the element?
...ts from top to bottom. Elements are added to the DOM and scripts are (generally) executed as they're encountered. This means that order matters. Typically, scripts can't find elements which appear later in the markup because those elements have yet to be added to the DOM.
Consider the following mar...
How to include a Font Awesome icon in React's render()
...lowing NPM command to include the latest version of font-awesome.
npm install --save font-awesome
import font-awesome to your index.js file. Just add below line to your index.js file
import '../node_modules/font-awesome/css/font-awesome.min.css';
or
import 'font-awesome/css/font-awesome.mi...
What's the purpose of the LEA instruction?
...ed to support high-level languages like Pascal and C, where arrays—especially arrays of ints or small structs—are common. Consider, for example, a struct representing (x, y) coordinates:
struct Point
{
int xcoord;
int ycoord;
};
Now imagine a statement like:
int y = points[i].ycoor...
Read password from stdin
...s is what I just cooked up (wouldn't be surprised if you find similar code all over the place, though):
import getpass
def login():
user = input("Username [%s]: " % getpass.getuser())
if not user:
user = getpass.getuser()
pprompt = lambda: (getpass.getpass(), getpass.getpass('...
Number of lines in a file in Java
...iles, sometimes I only need to know the number of lines in these files, usually I open them up and read them line by line until I reach the end of the file
...
Remove element of a regular array
...n foos.ToArray();
You could try this extension method that I haven't actually tested:
public static T[] RemoveAt<T>(this T[] source, int index)
{
T[] dest = new T[source.Length - 1];
if( index > 0 )
Array.Copy(source, 0, dest, 0, index);
if( index < source.Length ...
Remove multiple keys from Map in efficient way?
...s you want to remove, you can use the keySet method and map.keySet().removeAll(keySet);.
keySet returns a Set view of the keys contained in this map. The set is backed by the map, so changes to the map are reflected in the set, and vice-versa.
Contrived example:
Map<String, String> map ...
How do I get the current line number?
...er to do this work for you, by writing a utility method that uses the new caller attributes:
using System.Runtime.CompilerServices;
static void SomeMethodSomewhere()
{
ShowMessage("Boo");
}
...
static void ShowMessage(string message,
[CallerLineNumber] int lineNumber = 0,
[CallerMemberN...