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Given a class, see if instance has method (Ruby)
...t method_defined means ONLY methods that you defined explicitly with:
def my_method
end
then read this:
In Ruby, a property (attribute) on your model is basically a method also. So method_defined? will also return true for properties, not just methods.
For example:
Given an instance of a class...
The current SynchronizationContext may not be used as a TaskScheduler
I am using Tasks to run long running server calls in my ViewModel and the results are marshalled back on Dispatcher using TaskScheduler.FromSyncronizationContext() . For example:
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Moving average or running mean
...hole thing in one loop, without dependencies, the code below works great.
mylist = [1, 2, 3, 4, 5, 6, 7]
N = 3
cumsum, moving_aves = [0], []
for i, x in enumerate(mylist, 1):
cumsum.append(cumsum[i-1] + x)
if i>=N:
moving_ave = (cumsum[i] - cumsum[i-N])/N
#can do stuff w...
How to convert java.sql.timestamp to LocalDate (java8) java.time?
...mment is extremely important here, hence the number of upvotes for it. See my answer for details stackoverflow.com/a/57101544/2032701
– Ruslan
Jul 18 '19 at 19:40
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Android: Clear Activity Stack
I'm having several activities in my application. and flow is very complicated. When I click the Logout application navigates to login Screen and from there user can exit by cancel button (calling system.exit(0) )
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Android image caching
...ed with the browser.
grr. I wish somebody had told ME that before i wrote my own cache manager.
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Best Practices: working with long, multiline strings in PHP?
...mple question but I'm somewhat obsessive compulsive over the formatting of my code.
10 Answers
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Is there a way to define a min and max value for EditText in Android?
... use this from your Activity :
EditText et = (EditText) findViewById(R.id.myEditText);
et.setFilters(new InputFilter[]{ new InputFilterMinMax("1", "12")});
This will allow user to enter values from 1 to 12 only.
EDIT :
Set your edittext with android:inputType="number".
You can find more detail...
Wrong Manifest.mf in IntelliJ IDEA created .jar
... libraries into a .jar through IntelliJ IDEA's jar artifact but instead of my manifest.mf containing the standard
7 Answers...
What does __FILE__ mean in Ruby?
...hdir), this value will continue to be useful after changing directories.
$MY_FILE_PATH = File.expand_path(File.dirname(__FILE__))
# open class and do some stuff that changes directory
puts $MY_FILE_PATH
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