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MySQL get the date n days ago as a timestamp
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DATE_SUB will do part of it depending on what you want
mysql> SELECT DATE_SUB(NOW(), INTERVAL 30 day);
2009-06-07 21:55:09
mysql> SELECT TIMESTAMP(DATE_SUB(NOW(), INTERVAL 30 day));
2009-06-07 21:55:09
mysql> SELECT U...
Run a single migration file
...f the ruby file:
rails console
>> require "db/migrate/20090408054532_add_foos.rb"
>> AddFoos.up
Note: newer versions of rails may require AddFoos.new.up rather than AddFoos.up.
An alternative way (without IRB) which relies on the fact that require returns an array of class names:
sc...
What is C# analog of C++ std::pair?
...ect
Here is my pair class
public class Pair<X, Y>
{
private X _x;
private Y _y;
public Pair(X first, Y second)
{
_x = first;
_y = second;
}
public X first { get { return _x; } }
public Y second { get { return _y; } }
public override bool E...
How to detect when cancel is clicked on file input?
...entListener("focus",fn,{once: true}). However I couldn't get it to fire at all using document.body.addEventListener.. I don't know why. Instead I got the same result with window.addEventListener.
– WoodenKitty
Aug 13 '16 at 2:21
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ASP.NET MVC Razor Concatenation
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You should wrap the inner part of the call with ( ):
<li id="item_@(item.TheItemId)">
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How can I delete all Git branches which have been merged?
...anches which have already been merged? Is there an easy way to delete them all instead of deleting them one by one?
45 Answ...
How to change the font size on a matplotlib plot
How does one change the font size for all elements (ticks, labels, title) on a matplotlib plot?
12 Answers
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Sending files using POST with HttpURLConnection
...one can provide me with a good example on how to send a bitmap "file" (actually an in-memory stream) via POST to an Apache HTTP server. I'm not interested in cookies or authentication or anything complicated, but I just want to have a reliable and logic implementation. All the examples that I've see...
Cleaner way to do a null check in C#? [duplicate]
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Is this really considered cleaner?
– ClassicThunder
Jul 16 '13 at 13:35
23
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What is stdClass in PHP?
... class, kind of like Object in Java or object in Python (Edit: but not actually used as universal base class; thanks @Ciaran for pointing this out).
It is useful for anonymous objects, dynamic properties, etc.
An easy way to consider the StdClass is as an alternative to associative array. See thi...