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HashMap and int as key
... automatically autobox your int primitive values to Integer objects.
Read more about autoboxing from Oracle Java documentations.
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What is the purpose of setting a key in data.table?
...o be set on x. With the new on= argument from v1.9.6+, this is not true anymore, and setting keys is therefore not an absolute requirement here as well.
## joins using < v1.9.6
setkey(X, a) # absolutely required
setkey(Y, a) # not absolutely required as long as 'a' is the first column
X[Y]
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Version number comparison in Python
...alize(version2))
This is the same approach as Pär Wieslander, but a bit more compact:
Here are some tests, thanks to "How to compare two strings in dot separated version format in Bash?":
assert mycmp("1", "1") == 0
assert mycmp("2.1", "2.2") < 0
assert mycmp("3.0.4.10", "3.0.4.2") > 0
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Best way to include CSS? Why use @import?
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Python + Django page redirect
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def myview(request):
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return HttpResponseRedirect("/path/")
More info in the official Django docs
Update: Django 1.0
There is apparently a better way of doing this in Django now using generic views.
Example -
from django.views.generic.simple import redirect_to
urlpatterns = patte...
SQL Server SELECT INTO @variable?
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Best answer imho, but what happens if the results are more than one?
– capitano666
Feb 17 '16 at 10:25
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Occurrences of substring in a string
...ike this in a copy and paste static method? See my answer below, it's also more optimized.
– mmm
Apr 12 '15 at 9:54
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jQuery and TinyMCE: textarea value doesn't submit
... the best answer for the current version - please see post below - need 70 more upvotes to be listed first.
– Robert Guice
Mar 4 '19 at 4:25
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How to sort an array of associative arrays by value of a given key in PHP?
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Though this is definitely more expensive than the alternatives.
– Matt
Oct 22 '09 at 0:39
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Error handling in C code
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What if you want to communicate more details of the error? E.g. you have a parser error and want to provide line number and column of the syntax error and a way to print it all nicely.
– panzi
Oct 20 '13 at 23:44
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