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Move an array element from one array position to another
...
Here's a one liner I found on JSPerf....
Array.prototype.move = function(from, to) {
this.splice(to, 0, this.splice(from, 1)[0]);
};
which is awesome to read, but if you want performance (in small data sets) try...
Array.prototype.move2 = function(pos1, pos2) {
// local variables
v...
How to extract an assembly from the GAC?
...
I used the advice from this article to get an assembly from the GAC.
Get DLL Out of The GAC
DLLs once
deployed in GAC (normally located at
c:\windows\assembly) can’t be viewed
or used as a normal DLL file. They
can’t be ...
Detect & Record Audio in Python
...o Nick Fortescue's answer, here's a more complete example of how to record from the microphone and process the resulting data:
from sys import byteorder
from array import array
from struct import pack
import pyaudio
import wave
THRESHOLD = 500
CHUNK_SIZE = 1024
FORMAT = pyaudio.paInt16
RATE = 441...
Circular (or cyclic) imports in Python
...ty straightforward really. Just remember the following:
'import' and 'from xxx import yyy' are executable statements. They execute
when the running program reaches that line.
If a module is not in sys.modules, then an import creates the new module
entry in sys.modules and then executes...
Sending HTML email using Python
...
From Python v2.7.14 documentation - 18.1.11. email: Examples:
Here’s an example of how to create an HTML message with an alternative plain text version:
#! /usr/bin/python
import smtplib
from email.mime.multipart im...
Where do I find the current C or C++ standard documents?
...d C++ standards documents in PDF are:
C++17 – ISO/IEC 14882:2017: $116 from ansi.org
C++14 – ISO/IEC 14882:2014: $90 NZD (about $60 US) from Standards New Zealand
C++11 – ISO/IEC 14882:2011: $60 from ansi.org $60 from Techstreet
C++03 – ISO 14882:2003: $30 from ansi.org $48 from SAI Global...
How does Access-Control-Allow-Origin header work?
...Cross-Origin Resource Sharing) header.
When Site A tries to fetch content from Site B, Site B can send an Access-Control-Allow-Origin response header to tell the browser that the content of this page is accessible to certain origins. (An origin is a domain, plus a scheme and port number.) By defa...
What is the difference between exit and return? [duplicate]
... difference between return and exit statement in C programming when called from anywhere in a C program?
4 Answers
...
How to assert output with nosetest/unittest in python?
...on't have to write setup and teardown functions just for this.
import sys
from contextlib import contextmanager
from StringIO import StringIO
@contextmanager
def captured_output():
new_out, new_err = StringIO(), StringIO()
old_out, old_err = sys.stdout, sys.stderr
try:
sys.stdo...
StringIO in Python3
.... I use
io.StringIO and it works, but I can't use it with numpy 's genfromtxt like this:
8 Answers
...