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How do you get a query string on Flask?
...string.
Here's an example:
from flask import request
@app.route('/adhoc_test/')
def adhoc_test():
return request.query_string
To access an individual known param passed in the query string, you can use request.args.get('param'). This is the "right" way to do it, as far as I know.
ETA: Bef...
What is the difference between Python's list methods append and extend?
...t thing is doing things the Right Way™.
It's conceivable that you might test timings on two comparable operations and get an ambiguous or inverse result. Just focus on doing the semantically correct thing.
Conclusion
We see that extend is semantically clearer, and that it can run much faster th...
In Unix, can I run 'make' in a directory without cd'ing to that directory first?
...
makefile:
all:
gcc -Wall -Wpedantic -std=gnu99 -g src/test.c -o build/test
run:
./build/test
or
run:
./../build/test
etc.
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Batch script: how to check for admin rights
... of which have their own security, usability, and portability issues.
Testing
I've independently confirmed that this works on:
Windows XP, x86
Windows XP, x64
Windows Vista, x86
Windows Vista, x64
Windows 7, x86
Windows 7, x64
Windows 8, x86
Windows 8, x64
Windows 10 v1909, x64
(see scre...
In absence of preprocessor macros, is there a way to define practical scheme specific flags at proje
... usual, you can set a different value when in Debug or when in Release.
I tested it in real code; it doesn't seem to be recognized in a playground.
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Sending POST data in Android
...dos.writeBytes("Content-Disposition: form-data; name=\"param3\";filename=\"test_file.dat\"" + lineEnd);
dos.writeBytes("Content-Type: application/octet-stream" + lineEnd);
dos.writeBytes("Content-Transfer-Encoding: binary" + lineEnd);
dos.writeBytes(lineEnd);
dos.write(buffer);
dos....
How do I replace NA values with zeros in an R dataframe?
...ults.
If you are struggling with massive dataframes, data.table is the fastest option of all: 40% faster than the standard Base R approach. It also modifies the data in place, effectively allowing you to work with nearly twice as much of the data at once.
A clustering of other helpful tidyverse ...
Where can I get a “useful” C++ binary search algorithm?
...rm up more than one result. But on the odd occasion where you just need to test for existence an optimized version would also be nice.
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Is it worth using Python's re.compile?
...it.py does its timings here; it does several runs and only reports the shortest one, at which point the compiled regexp is cached. The extra cost you're seeing here is not the cost of compiling the regexp, but the cost of looking it up in the compiled regexp cache (a dictionary).
...
How to convert int to NSString?
...
Primitives can be converted to objects with @() expression. So the shortest way is to transform int to NSNumber and pick up string representation with stringValue method:
NSString *strValue = [@(myInt) stringValue];
or
NSString *strValue = @(myInt).stringValue;
...