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How can you sort an array without mutating the original array?
Let's suppose I wanted a sort function that returns a sorted copy of the inputted array. I naively tried this
6 Answers
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UITextfield leftView/rightView padding on iOS7
...ghtView views of an UITextField on iOS7 are really close to the textfield border.
27 Answers
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How do you downgrade rubygems?
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Eh, much better to sudo gem update --system 1.4.2 or rvm install rubygems 1.4.2
– mrm
Aug 29 '11 at 4:23
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How to check if a user is logged in (how to properly use user.is_authenticated)?
...his website but just can't seem to figure out how to do this as it's not working. I need to check if the current site user is logged in (authenticated), and am trying:
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Log to the base 2 in python
...ptional second argument which allows you to specify the base:
In [22]: import math
In [23]: math.log?
Type: builtin_function_or_method
Base Class: <type 'builtin_function_or_method'>
String Form: <built-in function log>
Namespace: Interactive
Docstring:
log(x[, base]) -&g...
How can I change UIButton title color?
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You can use -[UIButton setTitleColor:forState:] to do this.
Example:
Objective-C
[buttonName setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
Swift 2
buttonName.setTitleColor(UIColor.blackColor(), forState: .Normal)
Swift 3
buttonNa...
Get class name of django model
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Django models are derived from the ModelBase, which is the Metaclass for all models.
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Hiding axis text in matplotlib plots
I'm trying to plot a figure without tickmarks or numbers on either of the axes (I use axes in the traditional sense, not the matplotlib nomenclature!). An issue I have come across is where matplotlib adjusts the x(y)ticklabels by subtracting a value N, then adds N at the end of the axis.
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Replace transparency in PNG images with white background
... with Image Magick "convert" operations, but either nothing happens at all or I get an error. I don't want to go to an intermediate JPG form because I don't want the artifacts. Of course it's easy to do this in Gimp or Photoshop or whatever, but I'd really rather script it from the command line be...
msbuild.exe staying open, locking files
...ld is complete (and it doesn't seem to matter if it was a successful build or not), msbuild.exe stays open, and locks one of the files, which means every time TeamCity tries to clear its work directory, it fails, and can't continue.
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