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How does MySQL process ORDER BY and LIMIT in a query?
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It will order first, then get the first 20. A database will also process anything in the WHERE clause before ORDER BY.
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How to exit in Node.js
... process with the specified code. If omitted, exit uses the 'success' code 0.
To exit with a 'failure' code:
process.exit(1);
The shell that executed node should see the exit code as 1.
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Advantage of creating a generic repository vs. specific repository for each object?
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edited Aug 23 '13 at 15:00
Brody Robertson
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Why are two different concepts both called “heap”?
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answered Nov 9 '09 at 4:47
James McNellisJames McNellis
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Check if inputs are empty using jQuery
...g');
}
});
And you don't necessarily need .length or see if it's >0 since an empty string evaluates to false anyway but if you'd like to for readability purposes:
$('#apply-form input').blur(function()
{
if( $(this).val().length === 0 ) {
$(this).parents('p').addClass('warning'...
API Keys vs HTTP Authentication vs OAuth in a RESTful API
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Joakim
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answered Jan 17 '12 at 19:00
SidSid
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How to get number of rows using SqlDataReader in C#
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answered Sep 5 '09 at 13:25
Henk HoltermanHenk Holterman
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JavaScript function order: why does it matter?
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+600
tl;dr If you're not calling anything until everything loads, you should be fine.
Edit: For an overview which also covers some ES6...
jQuery's jquery-1.10.2.min.map is triggering a 404 (Not Found)
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If Chrome DevTools is reporting a 404 for a .map file (maybe jquery-1.10.2.min.map, jquery.min.map or jquery-2.0.3.min.map, but can happen with anything) first thing to know is this is only requested when using the DevTools.
Your users will not be hitting thi...
Create an empty data.frame
... stringsAsFactors=FALSE)
str(df)
> str(df)
'data.frame': 0 obs. of 5 variables:
$ Doubles : num
$ Ints : int
$ Factors : Factor w/ 0 levels:
$ Logicals : logi
$ Characters: chr
N.B. :
Initializing a data.frame with an empty column of the wrong type does not ...