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Programmatically access currency exchange rates [closed]
...ill be billed.
If you want to quote an "accurate" price to your customers based on an exchange rate, you need to factor in the above and provide a buffer so that you don't end up charging more than what you quoted.
FWIW, I've been adding 4% to what the F/X conversion would otherwise indicate.
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Copy folder recursively, excluding some folders
...
For RHEL derived distros: yum install rsync, or on Debian-based releases: apt-get install rsync . Unless you're building your server from absolute base on your own hardware, this is a non-issue. rsync is installed by default on my Amazon EC2 boxes, as well and my boxes from ZeroLa...
How to get awaitable Thread.Sleep?
I'm writing a network-bound application based on await/sleep paradigm.
1 Answer
1
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MySQL vs PostgreSQL for Web Applications [closed]
...n change rapidly from version to version, so before you go choosing a DBMS based on the advice below, do some research to see if it's still accurate.
Check for newer answers below.
Better?
MySQL is much more commonly provided by web hosts.
PostgreSQL is a much more mature product.
There's this...
Python function attributes - uses and abuses [closed]
...ciated data together:
#!/usr/bin/env python
SW_DELTA = 0
SW_MARK = 1
SW_BASE = 2
def stopwatch():
import time
def _sw( action = SW_DELTA ):
if action == SW_DELTA:
return time.time() - _sw._time
elif action == SW_MARK:
_sw._time = time.time()
retur...
Java generics - why is “extends T” allowed but not “implements T”?
...ve a constructor and methods that can accept any class that both axtends a base class and exhibits an interface not just interfaces that extend an interface. Then have the instantiation of the Genric test for the presense of interfaces AND have the actual class specified as a type parameter. Ideal...
Window.open and pass parameters by post method
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No jQuery and Pure JavaScript based implementation. Thanks.
– Pawan Pillai
Sep 1 '14 at 10:19
2
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How can I join elements of an array in Bash?
...' '-e' '-E' '-n' #-e-n-E-n-n
join_by , #
join_by , a #a
The code above is based on the ideas by @gniourf_gniourf, @AdamKatz, and @MattCowell.
Alternatively, a simpler function that supports only single character delimiter, would be:
function join_by { local IFS="$1"; shift; echo "$*"; }
For exampl...
Calling Java from Python
...s this work for any package? I tried: s = gateway.jvm.ch.ethz.ssh2.crypto.Base64() bt_out = s.decode(); Here class Base64 has method encode() and decode() and is part of package ch.ethz.ssh2.crypto in my .jar file. I get from py4j.reflection import MethodInvoker ImportError: No module named reflect...
How to display PDF file in HTML?
... 49%; ">
<img width="" height="400" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==" alt="Red dot"/>
<p>Streaming an Image form Base64 String « embedding images d...