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Select n random rows from SQL Server table
...olumn < 0.1. I'm looking for a simpler way to do it, in a single statement if possible.
16 Answers
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Sorting a tab delimited file
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Use -g rather than -n if you want numeric sort. -n is broken.
– Luke Hutchison
Jul 21 at 0:10
add a comment
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jQuery Validate Plugin - How to create a simple custom rule?
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I take it that this.optional(element) returns true if element is null?
– tnunamak
Jan 2 '11 at 18:40
12
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What does passport.session() middleware do?
...hilst the other answers make some good points I thought that some more specific detail could be provided.
app.use(passport.session());
is equivalent to
app.use(passport.authenticate('session'));
Where 'session' refers to the following strategy that is bundled with passportJS.
https://github....
What is the X-REQUEST-ID http header?
...en you're operating a webservice that is accessed by clients, it might be difficult to correlate requests (that a client can see) with server logs (that the server can see).
The idea of the X-Request-ID is that a client can create some random ID and pass it to the server. The server then include th...
Tuning nginx worker_process to obtain 100k hits per min
...worker_rlimit_nofile 20000; # Each connection needs a filehandle (or 2 if you are proxying)
# Total amount of users you can serve = worker_processes * worker_connections
more info: Optimizing nginx for high traffic loads
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Creating a jQuery object from a big HTML-string
...ents() retrieves the children of that fake <div> as a jQuery object
If you want to make .find() work then try this:
var string = '<div><input type="text" value="val" /></div>',
object = $('<div/>').html(string).contents();
alert( object.find('input').val() );
DEM...
Cmake doesn't find Boost
...Make, but it fails to find Boost libraries even though they are in the specified folder. I have specified Boost_INCLUDE_DIR , Boost_LIBRARYDIR and BOOST_ROOT , but I still get an error saying that CMake is not able to find Boost. What could be the reason of such error?
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Prevent onmouseout when hovering child element of the parent absolute div WITHOUT jQuery
...ssigned to
var e = event.toElement || event.relatedTarget;
if (e.parentNode == this || e == this) {
return;
}
alert('MouseOut');
// handle mouse event here!
}
document.getElementById('parent').addEventListener('mouseout',onMouseOut,true);
I made a quic...
Find first element by predicate
...ow() (for a more meaningful error instead of a NSEE) as you might not know if the operations applied to the stream pipeline will result in an element.
– Alexis C.
Feb 24 '16 at 17:22
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