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Is it possible to determine whether ViewController is presented as Modal?
...e modalViewController has been deprecated in iOS 6, here's a version that works for iOS 5+ and that compiles without warnings.
Objective-C:
- (BOOL)isModal {
return self.presentingViewController.presentedViewController == self
|| (self.navigationController != nil && self.navigati...
What is the difference between compile code and executable code?
... files into standalone software artifact(s) that can be run on a computer, or the result of doing so. One of the most important steps of a software build is the compilation process where source code files are converted into executable code.
While for simple programs the process consists of a single ...
In Python, how do I determine if an object is iterable?
...usion is that nowadays this is the best approach:
from collections.abc import Iterable # drop `.abc` with Python 2.7 or lower
def iterable(obj):
return isinstance(obj, Iterable)
The above has been recommended already earlier, but the general consensus has been that using iter() would be be...
Detail change after Git pull
...to master. You can refer to the previous position of master by master@{1} (or even master@{10.minutes.ago}; see the specifying revisions section of the git-rev-parse man page), so that you can do things like
See all of the changes: git diff master@{1} master
See the changes to a given file: git di...
How to check if a string is a valid date
I have a string: "31-02-2010" and want to check whether or not it is a valid date.
What is the best way to do it?
14 Answ...
How to implement an abstract class in ruby?
... almost always a better way). If you really think it's the best technique for the situation though, you can use the following snippet to be more declarative about which methods are abstract:
module Abstract
def abstract_methods(*args)
args.each do |name|
class_eval(<<-END, __FILE_...
What does cmd /C mean? [closed]
... but not cmd /c . I was trying to invoke a java program from the current for which I use Runtime.getRuntime().exec("cmd /C java helloworld"); There arises my doubt.
...
What's the regular expression that matches a square bracket?
...all possibilities, but haven't found the right one. What is a valid regex for this?
8 Answers
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python ? (conditional/ternary) operator for assignments [duplicate]
C and many other languages have a conditional (aka ternary) operator. This allows you to make very terse choices between two values based on the truth of a condition, which makes expressions, including assignments, very concise.
...
Get boolean from database using Android and SQLite
...
It is:
boolean value = cursor.getInt(boolean_column_index) > 0;
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