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How to access object attribute given string corresponding to name of that attribute
...ed to set and get the attribute of an class.
A brief example:
>>> from new import classobj
>>> obj = classobj('Test', (object,), {'attr1': int, 'attr2': int}) # Just created a class
>>> setattr(obj, 'attr1', 10)
>>> setattr(obj, 'attr2', 20)
>>> geta...
How to get config parameters in Symfony2 Twig Templates
... Thanks for this, I was worried I had to duplicate the parameter from the parameters file to the twig globals.
– Joe Yahchouchi
Jan 2 '18 at 0:30
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In Python, how to display current time in readable format
...
You could do something like:
>>> from time import gmtime, strftime
>>> strftime("%a, %d %b %Y %H:%M:%S +0000", gmtime())
'Thu, 28 Jun 2001 14:17:15 +0000'
The full doc on the % codes are at http://docs.python.org/library/time.html
...
How to `go test` all tests in my project?
...
From Go 1.9 onwards, use
go test ./...
In Go 1.6 through 1.8, the ./... matched also the vendor directory. To skip vendored packages, you'd use
go test $(go list ./... | grep -v /vendor/)
Sources: https://github.com/gol...
Best way to encode text data for XML in Java?
.... If you do want to escape yourself, you could look into StringEscapeUtils from the Apache Commons Lang library.
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Scanner vs. StringTokenizer vs. String.Split
... regular expressions API, of which String.split() is a part.
You'll note from my timings that String.split() can still tokenize thousands of strings in a few milliseconds on a typical machine. In addition, it has the advantage over StringTokenizer that it gives you the output as a string array, wh...
Rails - Validate Presence Of Association?
...ciations with validates_existence_of (which is a plugin):
Example snippet from this blog entry:
class Tagging < ActiveRecord::Base
belongs_to :tag
belongs_to :taggable, :polymorphic => true
validates_existence_of :tag, :taggable
belongs_to :user
validates_existence_of :user, :allo...
Is duplicated code more tolerable in unit tests?
...he logic and methods that are used internally. These shouldn't be accessed from outside the class. This is one reason why it is important to correctly encapsulate logic in a class using access modifiers or the convention in the language being used.
– Nathan
Jul...
How to pass parameters to a view
...
pass from other location
new MenuView({
collection: itemColl,
position: this.getPosition()
})
Add an options argument to initialize in view you are getting that passed variable,
initialize: function(options) {
// De...
What are the special dollar sign shell variables?
...ffort, especially considering that the vast majority of people end up here from Google search. I think the least you could do is add links to official documentation. TBH, the only reason I didn't flag it for deletion was because it is at least a partial answer to the question. I know it's old, but p...