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How can I check if string contains characters & whitespace, not just whitespace?
What is the best way to check if a string contains only whitespace?
9 Answers
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Setting UIButton image results in blue button in iOS 7
...this programmatically, add this line to the viewDidLoad:
[UIButton buttonWithType:UIButtonTypeSystem];
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Checking if array is multidimensional or not?
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The short answer is no you can't do it without at least looping implicitly if the 'second dimension' could be anywhere. If it has to be in the first item, you'd just do
is_array($arr[0]);
But, the most efficient general way I could find is to use a foreach ...
defaultdict of defaultdict?
...alled when you try to access a key that doesn't exist. The return value of it will be set as the new value of this key, which means in our case the value of d[Key_doesnt_exist] will be defaultdict(int).
If you try to access a key from this last defaultdict i.e. d[Key_doesnt_exist][Key_doesnt_exist]...
Is there a benefit to defining a class inside another class in Python?
...er class and a DownloadThread class. The obvious OOP concept here is composition. However, composition doesn't necessarily mean nesting, right?
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Installing Bootstrap 3 on Rails App
...assets/javascripts/application.jsby adding:
//= require bootstrap.min
With this you can update bootstrap any time you want, don't need to wait gem to be updated. Also with this approach assets pipeline will use minified versions in production.
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Call AngularJS from legacy code
I'm using AngularJS to build HTML controls that interact with a legacy Flex application. All callbacks from the Flex app must be attached to the DOM window.
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How to do parallel programming in Python?
...ocesses that can do generic work for you. Since we did not pass processes, it will spawn one process for each CPU core on your machine. Each CPU core can execute one process simultaneously.
If you want to map a list to a single function you would do this:
args = [A, B]
results = pool.map(solve1, a...
Javascript: Round up to the next multiple of 5
I need a utility function that takes in an integer value (ranging from 2 to 5 digits in length) that rounds up to the next multiple of 5 instead of the nearest multiple of 5. Here is what I got:
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Passing variable number of arguments around
...other function which expects a variable number of arguments from inside of it, passing all the arguments that got into the first function?
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