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Definition of a Balanced Tree
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Showing the stack trace from a running Python application
.... For example, bzr by default installs a SIGQUIT handler that invokes pdb.set_trace() to immediately drop you into a pdb prompt. (See the bzrlib.breakin module's source for the exact details.) With pdb you can not only get the current stack trace (with the (w)here command) but also inspect variab...
How do I output an ISO 8601 formatted string in JavaScript?
I have a Date object. How do I render the title portion of the following snippet?
14 Answers
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Regex: match everything but specific pattern
... else, grab the match value if not empty
a certain single character or a set of characters:
Use a negated character class: [^a-z]+ (any char other than a lowercase ASCII letter)
Matching any char(s) but |: [^|]+
Demo note: the newline \n is used inside negated character classes in demos to avo...
Keep-alive header clarification
..., for how long does the connection is saved to me ? (in other words , if I set keep alive- "keep" till when?)
An typical keep-alive response looks like this:
Keep-Alive: timeout=15, max=100
See Hypertext Transfer Protocol (HTTP) Keep-Alive Header for example (a draft for HTTP/2 where the keep-a...
How to run eclipse in clean mode? what happens if we do so?
...
What it does:
if set to "true", any cached data used
by the OSGi framework and eclipse
runtime will be wiped clean. This will
clean the caches used to store bundle
dependency resolution and eclipse
extension registry data. Using thi...
How to check if a table exists in a given schema
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Binary search (bisection) in Python
...O(1) or O(log n) average case, depending on your pattern)
Whereas with a set(), you're incurring
O(n) to create
O(1) lookup
O(1) insert / delete
The thing a sorted list really gets you are "next", "previous", and "ranges" (including inserting or deleting ranges), which are O(1) or O(|range|), ...
Representing graphs (data structure) in Python
...ve found to be most useful and efficient for graphs in Python is a dict of sets. This will be the underlying structure for our Graph class. You also have to know if these connections are arcs (directed, connect one way) or edges (undirected, connect both ways). We'll handle that by adding a directed...
How can I select every other line with multiple cursors in Sublime Text?
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