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Why does += behave unexpectedly on lists?
The += operator in python seems to be operating unexpectedly on lists. Can anyone tell me what is going on here?
8 Answe...
How to get the index of an element in an IEnumerable?
...iterate over the contents. As such, there isn't really a concept of an index. What you are doing really doesn't make a lot of sense for an IEnumerable. If you need something that supports access by index, put it in an actual list or collection.
...
Purpose of Python's __repr__
...__repr__ is more for developers while __str__ is for end users.
A simple example:
>>> class Point:
... def __init__(self, x, y):
... self.x, self.y = x, y
... def __repr__(self):
... return 'Point(x=%s, y=%s)' % (self.x, self.y)
>>> p = Point(1, 2)
>>> p
Poin...
Declare and initialize a Dictionary in Typescript
...
Edit: This has since been fixed in the latest TS versions. Quoting @Simon_Weaver's comment on the OP's post:
Note: this has since been fixed (not sure which exact TS version). I
get these errors in VS, as you would expect: Index signatures are
i...
How to Apply Gradient to background view of iOS Swift App
...(main view of a storyboard). The code runs, but nothing changes. I'm using xCode Beta 2 and Swift.
30 Answers
...
Focus-follows-mouse (plus auto-raise) on Mac OS X
...ine:
defaults write com.apple.Terminal FocusFollowsMouse -bool true
For X11 apps you can do this:
defaults write com.apple.x11 wm_ffm -bool true
In Snow Leopard, use this instead:
defaults write org.x.X11 wm_ffm -bool true
Apparently there's a program called CodeTek Virtual Desktop that'll ...
The most efficient way to implement an integer based power function pow(int, int)
...
Exponentiation by squaring.
int ipow(int base, int exp)
{
int result = 1;
for (;;)
{
if (exp & 1)
result *= base;
exp >>= 1;
if (!exp)
break;
base ...
What is the bower (and npm) version syntax?
...s me to specify version requirements for packages using the following syntax:
5 Answers
...
Error - trustAnchors parameter must be non-empty
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How can I strip first X characters from string using sed?
I am writing shell script for embedded Linux in a small industrial box. I have a variable containing the text pid: 1234 and I want to strip first X characters from the line, so only 1234 stays. I have more variables I need to "clean", so I need to cut away X first characters and ${string:5} does...