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How to upgrade PostgreSQL from version 9.6 to version 10.1 without losing data?
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Minor update: brew now also has the option to use brew services stop postgresql and brew services start postgresql instead of directly calling launchctl unload and launchctl load.
– florish
Mar 1 '17 at 15...
Best way to work with dates in Android SQLite [closed]
...hin SQLite.
Storing dates in UTC format, the default if you use datetime('now') (yyyy-MM-dd HH:mm:ss) will then allow sorting by the date column.
Retrieving dates as strings from SQLite you can then format/convert them as required into local regionalised formats using the Calendar or the android.t...
Change old commit message on Git
...d... updated the gemspec to hopefully work better
You can amend the commit now, with
It does not mean:
type again git rebase -i HEAD~3
Try to not typing git rebase -i HEAD~3 when exiting the editor, and it should work fine.
(otherwise, in your particular situation, a git rebase -i --abort might...
How to determine if a type implements an interface with C# reflection
...the arguments for IsAssignableFrom backwards. I will go with GetInterfaces now :p
– Benjamin
Apr 10 '13 at 22:21
14
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How to find elements by class
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@pyCthon See answer for @jmunsch, BS now supports class_ which works properly.
– Wernight
Oct 6 '14 at 9:47
30
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Adding gif image in an ImageView in android
...animation is there. It's appearing just as a still image. I would like to know how can i show it as a gif image.
18 Answers...
What is 'Currying'?
...function that takes two arguments, a and b, and returns their sum. We will now curry this function:
function add (a) {
return function (b) {
return a + b;
}
}
This is a function that takes one argument, a, and returns a function that takes another argument, b, and that function returns th...
How to determine if a number is a prime with regex?
...ce again the returning of the negation of the match result.
Do you see it now? It's unbelievably tricky (and computationally expensive!) but it's also kind of simple at the same time, once you get it. :-)
I can elaborate if you have further questions, like on how regex parsing actually works. But ...
CSS – why doesn’t percentage height work? [duplicate]
... container ancestor box
or in English, its parent box. (It's well worth knowing what it would be for fixed and absolute positions as well, but I'm ignoring that to keep this answer short.)
So take these two examples:
<div id="a" style="width: 100px; height: 200px; background-color: ora...
What are the differences between Rust's `String` and `str`?
...of UTF-8 bytes of dynamic length somewhere in memory. Since the size is unknown, one can only handle it behind a pointer. This means that str most commonly2 appears as &str: a reference to some UTF-8 data, normally called a "string slice" or just a "slice". A slice is just a view onto some data,...