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Why are mutable structs “evil”?
...he danger of making a copy of a struct, modifying it, and somehow thinking one is modifying the original (when the fact that one is writing a struct field makes self-apparent the fact that one is only writing one's copy) seems pretty small compared to the danger that someone who holds a class object...
How to delete items from a dictionary while iterating over it?
...ot modify a dictionary while iterating over it:
>>> mydict = {'one': 1, 'two': 2, 'three': 3, 'four': 4}
>>> for k, v in mydict.iteritems():
... if k == 'two':
... del mydict[k]
...
------------------------------------------------------------
Traceback (most recent cal...
Using jQuery to replace one tag with another
...is a jsperf version which does not break the page: jsperf.com/substituting-one-tag-for-another-with-jquery/2 and you see the speed difference is not that huge anymore. Your solution is slower because you perform two DOM manipulations per element: unwrap removes the parent and adds the children to th...
Set every cell in matrix to 0 if that row or column contains a 0
...esets 1st line/col depending on l and c.
I doubt strongly that I can be done in 1 pass as squares in the beginning depend on squares in the end. Maybe my 2nd pass can be made more efficient...
import pprint
m = [[1, 0, 1, 1, 0],
[0, 1, 1, 1, 0],
[1, 1, 1, 1, 1],
[1, 0, 1, 1, 1],
...
What is normalized UTF-8 all about?
...ng form. The resulting code points should appear identical to the original ones barring any bugs in the fonts or rendering engine.
When To Use
Because the results appear identical, it is always safe to apply canonical normalization to a string before storing or displaying it, as long as you can tole...
Circle drawing with SVG's arc path
...it, not SVG itself. But that is how you make a circle in SVG/XAMLs Arc component.
– Todd Main
Apr 21 '11 at 4:21
Ahhh,...
Select all columns except one in MySQL?
...lect statement to get all of the columns from a certain MySQL table except one. Is there a simple way to do this?
30 Answer...
How many classes should I put in one file? [closed]
I'm used to the Java model where you can have one public class per file. Python doesn't have this restriction, and I'm wondering what's the best practice for organizing classes.
...
How to delete duplicates on a MySQL table?
...ice: this would keep the oldest duplicate record and would erase the newer ones. If you want to keep the newest you cannot do this with ALTER IGNORE.
– Haralan Dobrev
Oct 1 '12 at 10:26
...
Check list of words in another string [duplicate]
...
if any(word in 'some one long two phrase three' for word in list_):
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