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Big O, how do you calculate/approximate it?
...n't a moron, its average case complexity is O(n log n) and it uses a pivot selection strategy that reduces the odds of hitting the O(n²) case). And both bsearch and qsort can be worse if the comparator function is pathological.
– ShadowRanger
Mar 21 '19 at 14:...
Add property to anonymous type after creation
...object to pass my Html Attributes to some helper methods.
If the consumer didn't add an ID attribute, I want to add it in my helper method.
...
How to change background color in android app
I want to be able to change the background color to white in my android app in the simplest way possible.
19 Answers
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How can I scroll to a specific location on the page using jquery?
...t);
only to sum up, use the window.location.hash to jump to element with ID
window.location.hash = '#your-page-element';
Directly in HTML (accesibility enhancements)
<a href="#your-page-element">Jump to ID</a>
<div id="your-page-element">
will jump here
</div>
...
The tilde operator in Python
...sentation of the integer are reversed (as in b <- b XOR 1 for each individual bit), and the result interpreted again as a twos-complement integer. So for integers, ~x is equivalent to (-x) - 1.
The reified form of the ~ operator is provided as operator.invert. To support this operator in your ...
How to replace a hash key with another key
...
deep_transform_keys can be used for it :) apidock.com/rails/v4.2.1/Hash/deep_transform_keys
– gayavat
Nov 30 '15 at 6:28
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Detect when browser receives file download
...figure out how to detect when the browser has received the file, so I can hide the indicator.
22 Answers
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Show dialog from fragment?
...it more verbose than the classic managed dialogs approach of previous Android revisions, but it is now the preferred method. You can avoid referencing the Activity entirely by using the putFragment and getFragment methods of FragmentManager, allowing the DialogFragment to report back directly to the...
Tying in to Django Admin's Model History
...min.models import LogEntry, ADDITION
LogEntry.objects.log_action(
user_id = request.user.pk,
content_type_id = ContentType.objects.get_for_model(object).pk,
object_id = object.pk,
object_repr = force_unicode(object),
action_flag = ADDITION
)
where object...
Items in JSON object are out of order using “json.dumps”?
...ing this we get:
>>> import OrderedDict
>>> unordered={"id":123,"name":"a_name","timezone":"tz"}
>>> ordered = OrderedDict.OrderedDict( [("id",123), ("name","a_name"), ("timezone","tz")] )
>>> e = OrderedJsonEncoder()
>>> print e.encode( unordered )
{"ti...