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Why is it said that “HTTP is a stateless protocol”?
HTTP has HTTP Cookies. Cookies allow the server to track the user state, the number of connections, last connection, etc.
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MySQL vs MongoDB 1000 reads
...very excited about MongoDb and have been testing it lately. I had a table called posts in MySQL with about 20 million records indexed only on a field called 'id'.
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SVN undo delete before commit
... As per the link, use svn -R revert to undelete the whole directory with all contents, which is probably what you want. svn revert without the -R just restores the directory, not the contents.
– n13
Aug 1 '13 at 3:22
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What does multicore assembly language look like?
...on, but it's an answer to a question that appears in the comments. Essentially, the question is what support the hardware gives to multi-threaded operation.
Nicholas Flynt had it right, at least regarding x86. In a multi threaded environment (Hyper-threading, multi-core or multi-processor), the B...
Trigger a keypress/keydown/keyup event in JS/jQuery?
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You can trigger any of the events with a direct call to them, like this:
$(function() {
$('item').keydown();
$('item').keypress();
$('item').keyup();
$('item').blur();
});
Does that do what you're trying to do?
You should probably also trigger .focus() a...
How can I select all elements without a given class in jQuery?
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in 2019 vanillaJs: document.querySelectorAll('.foo-class:not(.bar-class):not(.foobar-class'))
– Ivan Kolyhalov
Oct 25 '19 at 18:05
add a comm...
Search and replace in bash using regular expressions
...'s are processed in order. Also, the g flag for the expression will match all occurrences in the input.
You can also pick your favorite tool using this method, i.e. perl, awk, e.g.:
echo "$MYVAR" | perl -pe 's/[a-zA-Z]/X/g and s/[0-9]/N/g'
This may allow you to do more creative matches... For ...
Lodash - difference between .extend() / .assign() and .merge()
...d try to map child object properties from source to destination. So essentially we merge object hierarchy from source to destination. While for extend/assign, it's simple one level copy of properties from source to destination.
Here's simple JSBin that would make this crystal clear:
http://jsbin.co...
How to execute a JavaScript function when I have its name as a string
...cript as a string. How do I convert that into a function pointer so I can call it later?
34 Answers
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The object 'DF__*' is dependent on column '*' - Changing int to double
Basically I got a table in my EF database with the following properties:
8 Answers
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