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C# How can I check if a URL exists/is valid?
...test a URL without the cost of downloading the content:
// using MyClient from linked post
using(var client = new MyClient()) {
client.HeadOnly = true;
// fine, no content downloaded
string s1 = client.DownloadString("http://google.com");
// throws 404
string s2 = client.Downloa...
Expansion of variables inside single quotes in a command in Bash
I want to run a command from a bash script which has single quotes and some other commands inside the single quotes and a variable.
...
How to set the prototype of a JavaScript object that has already been instantiated?
...ossible to do: the designation of an objects prototype at runtime separate from its constructor. This is an important use case and is one of the primary reasons __proto__ isn't already dead. It's important enough that it's been a serious discussion point in the formulation of Harmony, or soon to be ...
Simplest SOAP example
...tp://www.guru4.net/articoli/javascript-soap-client/en/
Generate JavaScript from a WSDL:
https://cwiki.apache.org/confluence/display/CXF20DOC/WSDL+to+Javascript
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Finding differences between elements of a list
...
You can use itertools.tee and zip to efficiently build the result:
from itertools import tee
# python2 only:
#from itertools import izip as zip
def differences(seq):
iterable, copied = tee(seq)
next(copied)
for x, y in zip(iterable, copied):
yield y - x
Or using iterto...
performing HTTP requests with cURL (using PROXY)
..._proxy=http://your.proxy.server:port/
Then you can connect through proxy from (many) application.
And, as per comment below, for https:
export https_proxy=https://your.proxy.server:port/
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How do you do Impersonation in .NET?
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That link from the Dutch programmer's blog was excellent. Much more intuitive approach to impersonation than the other techniques presented.
– code4life
Aug 22 '16 at 23:26
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How to programmatically cause a core dump in C/C++
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The hint to ulimit -c unlimited from Suvesh Pratapa answer, helped my a lot for this answer.
– Boris Däppen
Feb 11 '19 at 18:22
add...
Understanding PrimeFaces process/update and JSF f:ajax execute/render attributes
...n errors on other input components are preventing the ajax listener method from being executed.
Then there's the @all. This has no special effect in process attribute, but only in update attribute. A process="@all" behaves exactly the same as process="@form". HTML doesn't support submitting multiple...
Why is the use of alloca() not considered good practice?
...k rather than on the heap, as in the case of malloc() . So, when I return from the routine the memory is freed. So, actually this solves my problem of freeing up dynamically allocated memory. Freeing of memory allocated through malloc() is a major headache and if somehow missed leads to all sorts...