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What exactly does the Access-Control-Allow-Credentials header do?
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edited Jun 10 '17 at 22:01
John
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How can I select the first day of a month in SQL?
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30 Answers
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Twitter Bootstrap - how to center elements horizontally or vertically
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Update: while this answer was likely correct back in early 2013, it should not be used anymore. The proper solution uses offsets.
As for other users suggestion there are also native bootstrap classes available like:
class="text-center"
class="pagination-centered"
thanks to @Henn...
Show loading image while $.ajax is performed
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answered Jan 13 '11 at 20:14
Zack BloomZack Bloom
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What is the purpose of setting a key in data.table?
...e other vignettes that we plan to.
I've updated this answer again (Feb 2016) in light of the new on= feature that allows ad-hoc joins as well. See history for earlier (outdated) answers.
What exactly does setkey(DT, a, b) do?
It does two things:
reorders the rows of the data.table DT by the...
Fastest way to determine if an integer is between two integers (inclusive) with known sets of values
...e interval to the point of origin and checks if number is in the interval [0, D], where D = upper - lower. If number below lower bound: negative, and if above upper bound: larger than D.
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How to convert date to timestamp?
I want to convert date to timestamp, my input is 26-02-2012 . I used
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Index of Currently Selected Row in DataGridView
...Row of a DataGridView ? I don't want the Row object, I want the index (0 .. n).
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MySQL Results as comma separated list
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You can use GROUP_CONCAT to perform that, e.g. something like
SELECT p.id, p.name, GROUP_CONCAT...
Firefox Web Console Disabled?
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This happens when the page itself defines a global variable called console, for example. If the...