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Traits in PHP – any real world examples/best practices? [closed]
...odel) by extending it. This is done by pointing the Zend autoloader (via a XML config file) to use the User model from the extension, and have that new model extend the core model. (example) But what if two extensions override the same model? You get a "race condition" and only one is loaded.
The s...
Find column whose name contains a specific string
...'t really understand exactly how it works, though, still being new to both Python and Pandas. Could you perhaps explain?
– erikfas
Jan 22 '14 at 14:35
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How to find and return a duplicate value in array
...code for some huge scaling data (and if so, you can actually just use C or Python), the provided answer is far more elegant/readable, and isnt' going to run that much slower compared to a linear time solution. furthermore, in theory, the linear time solution requires linear space, which may not be a...
Regular expressions in C: examples?
...ssions in C. The Perl syntax is pretty much that same syntax used in Java, Python, and a number of other languages. The POSIX syntax is the syntax used by grep, sed, vi, etc.
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What is `related_name` used for in Django?
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How to set target hosts in Fabric file
... roles, run, env
from fabric.tasks import execute
# Not a task, plain old Python to dynamically retrieve list of hosts
def get_stressors():
hosts = []
# logic ...
return hosts
@task
def stress_test():
# 1) Dynamically generate hosts/roles
stressors = get_stressors()
env.rol...
How to round up the result of integer division?
... For languages with a proper Euclidian-division operator such as Python, an even simpler approach would be pageCount = -((-records) // recordsPerPage).
– supercat
Jul 4 '18 at 16:45
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How do you performance test JavaScript code?
...;) for jsPerf. I regularly use this in a similar manner to %timeit in an ipython REPL shell for Python code.
– amcgregor
Jul 3 '19 at 16:10
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Why do you not use C for your web apps?
...cks of C and lose the advantages of a managed environment like Java, .NET, Python, Perl or other languages.
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How do I do a not equal in Django queryset filtering?
...r used them but it seems they can be negated and combined much like normal python expressions.
Update: I Just tried it out, it seems to work pretty well:
>>> from myapp.models import Entry
>>> from django.db.models import Q
>>> Entry.objects.filter(~Q(id = 3))
[<Entry...