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Long Press in JavaScript?
...apped presstimer with if (presstimer === null) to make sure timer wasn't already active.
– Xander
Sep 1 '15 at 16:32
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show 4 more comments
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How to replace NaN values by Zeroes in a column of a Pandas Dataframe?
...te(df.loc[idx[:,mask_1],idx[[mask_2],:]].fillna(value=0))
It's one line, reads reasonably well (sort of) and eliminates any unnecessary messing with intermediate variables or loops while allowing you to apply fillna to any multi-level slice you like!
If anybody can find places this doesn't work p...
django - why is the request.POST object immutable?
...hashable.
So that the POST data can be built lazily (without committing to read the whole response), as claimed here? I see no evidence of this in the code: as far as I can tell, the whole of the response is always read, either directly, or via MultiPartParser for multipart responses.
To protect you...
Single vs Double quotes (' vs ")
...this: <a onclick="alert(\"Clicked!\")">. However, this is a lot less readable.
– fabspro
Jul 16 '12 at 13:36
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Database sharding vs partitioning
I have been reading about scalable architectures recently. In that context, two words that keep on showing up with regards to databases are sharding and partitioning . I looked up descriptions but still ended up confused.
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How big can a MySQL database get before performance starts to degrade
... you are going to have to move to a master/slave configuration so that the read queries can run against the slaves and the write queries run against the master. However if you are not ready for this yet, you can always tweak your indexes for the queries you are running to speed up the response time...
Reason to Pass a Pointer by Reference in C++?
...the user of that class could get a pointer to the internal data buffer and read/write to it, but it cannot – for example – free that buffer using delete or rebind that pointer to some other place in memory? Or did I get it wrong?
– BarbaraKwarc
Aug 4 '16 at...
Long-held, incorrect programming assumptions [closed]
...new language, computational complexity, lambda expressions, you name it).
Reading blogs, Stack Overflow and programming books always seemed to make me feel that I was behind the curve on the things that all programmers must just know intuitively.
I've realized over time that I'm effectively compa...
How to check file MIME type with javascript before upload?
I have read this and this questions which seems to suggest that the file MIME type could be checked using javascript on client side. Now, I understand that the real validation still has to be done on server side. I want to perform a client side checking to avoid unnecessary wastage of server res...
How can I remove a character from a string using Javascript?
...:
mystring.replace(/\/r/, '/')
Now for the excessive explanation:
When reading/writing a regEx pattern think in terms of: <a character or set of charcters> followed by <a character or set of charcters> followed by <...
In regEx <a character or set of charcters> could be one...