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Difference between this and self in JavaScript
...s the standard method for setting event listeners.
From Mozilla docs:
By using self, you can refer to the global scope in a way that will work not only in a window context (self will resolve to window.self) but also in a worker context (self will then resolve to WorkerGlobalScope.self).
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Using port number in Windows host file
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What you want can be achieved by modifying the hosts file through Fiddler 2 application.
Follow these steps:
Install Fiddler2
Navigate to Fiddler2 menu:- Tools > HOSTS.. (Click to select)
Add a line like this:-
localhost:8080 www.mydomainnam...
Memcache(d) vs. Varnish for speeding up 3 tier web architecture
...the database only has to write this comment. Nothing else needs to be done by the database to generate the page. All the comments are pulled by Memcache, and the page is recached until somebody affects it again (perhaps by voting my answer up). Again, the database writes the vote, all other data is ...
Can anyone explain what JSONP is, in layman terms? [duplicate]
... security risks.
JSONP (JSON with Padding) is a method commonly used to
bypass the cross-domain policies in web browsers. (You are not allowed to make AJAX requests to a web page perceived to be on a different server by the browser.)
JSON and JSONP behave differently on the client and the server...
Difference between angle bracket < > and double quotes “ ” while including header files in C++? [dup
...sequence of implementation-defined places for a header identified uniquely by the specified sequence between the < and > delimiters, and causes the replacement of that directive by the entire contents of the header. How the places are specified or the header identified is implementation-define...
git diff between two different files
...he --no-index option when running the command in a working tree controlled by Git and at least one of the paths points outside the working tree, or when running the command outside a working tree controlled by Git.
– mitenka
Jul 23 at 10:07
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git remote prune – didn't show as many pruned branches as I expected
... ran git remote prune origin, you have pruned some branch that was removed by someone else. It's more likely that your co-workers now need to run git prune to get rid of branches you have removed.
So what exactly git remote prune does? Main idea: local branches (not tracking branches) are not tou...
Difference between “read commited” and “repeatable read”
...epeatable read guarantees, it also guarantees that no new data can be seen by a subsequent read.
Say you have a table T with a column C with one row in it, say it has the value '1'. And consider you have a simple task like the following:
BEGIN TRANSACTION;
SELECT * FROM T;
WAITFOR DELAY '00:01:00'...
GCC dump preprocessor defines
...ocessor defines are dependent on command line options - you can test these by adding the relevant options to the above command line. For example, to see which SSE3/SSE4 options are enabled by default:
$ gcc -dM -E - < /dev/null | grep SSE[34]
#define __SSE3__ 1
#define __SSSE3__ 1
and then com...
Django's SuspiciousOperation Invalid HTTP_HOST header
...ly, then it is possible someone is probing your site for the vulnerability by spoofing the header.
There is discussion right now by the Django developers to change this from a 500 internal server error to a 400 response. See this ticket.
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