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How to retrieve an element from a set without removing it?
...e PEP 20 zealot in me that the most verbose solution is the best. At least converting a set into a list just to extract the first element of the set is as horrible as expected. Thank Guido, may his light continue to guide us.
Surprisingly, the RNG-based solution is absolutely horrible. List convers...
C++ include and import difference
...type libraries or .tlbs (COM stuff).
The content of the type library is converted into C++ classes, mostly describing the COM interfaces for you automatically, and then it is included into your file.
The #import directive was introduced by Microsoft as an extension to the C++ language. You ca...
Plot a bar using matplotlib using a dictionary
...e code does not work with Python 3. For Python 3, the D.keys() needs to be converted to a list.
import matplotlib.pyplot as plt
D = {u'Label1':26, u'Label2': 17, u'Label3':30}
plt.bar(range(len(D)), D.values(), align='center')
plt.xticks(range(len(D)), list(D.keys()))
plt.show()
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How to define different dependencies for different product flavors
I am converting one of my apps to Gradle and would like to use the new build flavor features to have a paid and a free ad based flavor.
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How to assign colors to categorical variables in ggplot2 that have stable mapping?
...
The easiest solution is to convert your categorical variable to a factor prior to the subsetting. Bottomline is that you need a factor variable with exact the same levels in all your subsets.
library(ggplot2)
dataset <- data.frame(category = rep(LE...
How to create a colored 1x1 UIImage on the iPhone dynamically?
...with color: UIColor) -> UIImage {
let rect = CGRect(origin: CGPoint(x: 0, y:0), size: CGSize(width: 1, height: 1))
UIGraphicsBeginImageContext(rect.size)
let context = UIGraphicsGetCurrentContext()!
context.setFillColor(color.cgColor)
context.fill(rect)
...
Unit Testing AngularJS directive with templateUrl
...e ng-html2js preprocessor. Ng-html2js reads the HTML files you specify and converts them into an Angular module that pre-loads the $templateCache.
Step 1: Enable and configure the preprocessor in your karma.conf.js
// karma.conf.js
preprocessors: {
"path/to/templates/**/*.html": ["ng-html2js"...
How do I add more members to my ENUM-type column in MySQL?
...ySQL is notorious for allowing garbage into ENUM columns. It will silently convert non-conforming values to empty strings, for instance. Are you 100% sure you don't have any offending values? No empty strings? No leading or trailing whitespace? Case differences? Accented characters?
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Remote branch is not showing up in “git branch -r”
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This is very usefull if you have converted a shallow clone to an unshallow.
– Warpzit
Oct 3 '16 at 13:29
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What effect(s) can the virtual keyword have in Entity Framework 4.1 POCO Code First?
...ion<T> only.
They cannot be a concrete
implementation or another interface
that derives from ICollection<T> (a
difference from the Deferred Loading
proxy)
Another useful link describing this is MSDN's Requirements for Creating POCO Proxies.
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