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Add missing dates to pandas dataframe
...efore merging two dataframes of different index length where joins, merges etc. almost always leads to errors such as a column full of NaNs.
– user3661992
Sep 7 at 10:24
add a...
Benefits of inline functions in C++?
...iler outputs, but with today's optimized compilers, fast CPUs, huge memory etc. (not like in the 1980< where memory was scarce and everything had to fit in 100KB of memory) what advantages do they really have today?
...
C# Object Pooling Pattern implementation
...d/required lifetime of objects, the real reason that the pool is required, etc. Typically pools are special-purpose - thread pools, connection pools, etc. - because it is easier to optimize one when you know exactly what the resource does and more importantly have control over how that resource is ...
Specifying and saving a figure with exact size in pixels
...the same pixel dimensions as the im array.
Note: the OP specified no axes, etc. which is what this solution does exactly. If one wants to add axes, ticks, etc. my preferred approach is to do that on a separate plot, saving with transparent=True (PNG or PDF) then overlay the latter on the image. This...
Cross-browser custom styling for file upload button [duplicate]
...ould still work just fine, so could you send me a link of a jsfiddle/jsbin/etc of the code that doesn't work in IE8?
– Joeytje50
Nov 30 '14 at 19:11
...
A CORS POST request works from plain JavaScript, but why not with jQuery?
...m headers or allow the use of credentials (username, password, or cookies, etc), read on.
I think I found the answer! (4 hours and a lot of cursing later)
//This does not work!!
Access-Control-Allow-Headers: *
You need to manually specify all the headers you will accept (at least that was the ...
What's the best online payment processing solution? [closed]
...lable to non-U.S. companies, easy to setup, reliable, cheap, customizable, etc. What are your experiences?
13 Answers
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Determine project root from a running node.js application
...y on a global variable, which means that you can't easily reuse components/etc.
process.cwd()
This returns the current working directory. Not reliable at all, as it's entirely dependent on what directory the process was launched from:
$ cd /home/demo/
$ mkdir subdir
$ echo "console.log(process.c...
CASCADE DELETE just once
...traint on some_table and all tables that have constraints on those tables, etc.
Postgres supports CASCADE with TRUNCATE command:
TRUNCATE some_table CASCADE;
Handily this is transactional (i.e. can be rolled back), although it is not fully isolated from other concurrent transactions, and has sev...
Extract elements of list at odd positions
...llowing positions (0-based, so first element is at position 0, second at 1 etc.):
1, 3, 5
so the result (actual numbers) will be:
2, 4, 6
Explanation
The [1::2] at the end is just a notation for list slicing. Usually it is in the following form:
some_list[start:stop:step]
If we omitted sta...