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Fastest way to flatten / un-flatten nested JSON objects
I threw some code together to flatten and un-flatten complex/nested JSON objects. It works, but it's a bit slow (triggers the 'long script' warning).
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How to sort objects by multiple keys in Python?
...f x > y.
https://portingguide.readthedocs.io/en/latest/comparisons.html#the-cmp-function
"""
return (x > y) - (x < y)
def multikeysort(items, columns):
comparers = [
((i(col[1:].strip()), -1) if col.startswith('-') else (i(col.strip()), 1))
for col in colu...
u'\ufeff' in Python string
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The Unicode character U+FEFF is the byte order mark, or BOM, and is used to tell the difference between big- and little-endian UTF-16 encoding. If you decode the web page using the right codec, Python will remove it for you. Examples:
#!python2
#coding: utf8
u = u'ABC'...
What can MATLAB do that R cannot do? [closed]
...form equivalent tasks in each here: math.umaine.edu/~hiebeler/comp/matlabR.html
– Suppressingfire
Nov 15 '09 at 19:27
4
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REST API Best practices: Where to put parameters? [closed]
... was clarified in RFC 3986 http://labs.apache.org/webarch/uri/rfc/rfc3986.html#query
– Darrel Miller
Oct 26 '10 at 17:30
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How can I mock dependencies for unit testing in RequireJS?
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There's a config.map option http://requirejs.org/docs/api.html#config-map.
On how-to use it:
Define normal module;
Define stub module;
Configure RequireJS expicitely;
requirejs.config({
map: {
'source/js': {
'foo': 'normalModule'
},
'source/test': {
'fo...
clang: how to list supported target architectures?
...urce code.
in llvm/ADT/Triple.h (http://llvm.org/doxygen/Triple_8h_source.html):
enum ArchType {
UnknownArch,
arm, // ARM: arm, armv.*, xscale
aarch64, // AArch64: aarch64
hexagon, // Hexagon: hexagon
mips, // MIPS: mips, mipsallegrex
mipsel, // MIPSEL: mipsel, m...
How do I commit only some files?
...have two projects. One is the "official" project and the second is a light modification (some files added). I created new branch and I put new files to them. But in during development some files common to both branches is changed.
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Is it smart to replace boost::thread and boost::mutex with c++11 equivalents?
... The shared_mutex docs are at boost.org/doc/libs/1_47_0/doc/html/thread/…. You either lock the mutex as shared or exclusive, and then use the corresponding unlock function. You can also use the RAII types to do this (shared_lock takes a shared read lock, and lock_guard and unique_lo...
PHP: How to remove all non printable characters in a string?
...lot, i tried every encoding function available in PHP from regex to mb_ to htmlspecialchars etc. Nothing removed control characters, thanks for investing the work.
– John
Jan 6 '18 at 3:27
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