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How to test if parameters exist in rails
...he params object is no longer a hash, and I don't see the key? method. edgeapi.rubyonrails.org/classes/ActionController/…
– stephen.hanson
Nov 8 '16 at 22:32
1
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Matplotlib discrete colorbar
...ok at the documentation for the base colormap class: http://matplotlib.org/api/colors_api.html#matplotlib.colors.Colormap )
It sounds like you want something like this:
import matplotlib.pyplot as plt
import numpy as np
# Generate some data
x, y, z = np.random.random((3, 30))
z = z * 20 + 0.1
# ...
How to change a TextView's style at runtime
...ated a ClickListener to trap the tap event on that TextView:
EDIT:
As from API 23 'setTextAppearance' is deprecated
myTextView.setOnClickListener(new View.OnClickListener() {
public void onClick(View view){
//highlight the TextView
//myTex...
What's invokedynamic and how do I use it?
...d implementation, e.g. toString.
Why Indy?
As opposed to the Reflection APIs, the java.lang.invoke API is quite efficient since the JVM can completely see through all invocations. Therefore, JVM may apply all sorts of optimizations as long as we avoid the slow path as much as possible!
In additi...
Sanitizing strings to make them URL and filename safe?
...n in general
OWASP have a PHP implementation of their Enterprise Security API which among other things includes methods for safe encoding and decoding input and output in your application.
The Encoder interface provides:
canonicalize (string $input, [bool $strict = true])
decodeFromBase64 (strin...
C++ blogs that you regularly follow? [closed]
...
The Old New Thing deals with a lot of Win32 API topics, as well as a lot of interesting windows history. It doesn't cover MFC. For a general overview of the blog, see joelonsoftware.com/articles/APIWar.html
– Raul Agrait
Jun 8 '0...
In Node.js, how do I turn a string to a json? [duplicate]
For example, a HTTP REST API just returned me a JSON, but of course it's a string right now. How can I turn it into a JSON?
...
Is there a hosted version of Twitter Bootstrap? [closed]
...ng yes, star the issue on Google bugtracker: code.google.com/p/google-ajax-apis/issues/detail?id=637
– Paolo
Aug 26 '12 at 10:52
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Installation Issue with matplotlib Python [duplicate]
...ge rendering back end of matplotlib (what-is-a-backend to render using the API of Cocoa by default). There are Qt4Agg and GTKAgg and as a back-end is not the default. Set the back end of macosx that is differ compare with other windows or linux os.
Solution
I assume you have installed the pip ma...
What's the difference between SoftReference and WeakReference in Java?
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Weak Reference
http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/ref/WeakReference.html
Principle: weak reference is related to garbage collection. Normally, object having one or more reference will not be eligible for garbage collection.
The above principle is not applicabl...