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Maintaining the final state at end of a CSS3 animation
...e set to opacity: 0; in the CSS. The animation class is applied onClick, and, using keyframes, it changes the opacity from 0 to 1 (among other things).
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JPA getSingleResult() or null
... doesn't exist or update it if it does. To enable this, I have to findByIdAndForeignKey , if it returned null insert if not then update. The problem is how do I check if it exists? So I tried getSingleResult . But it throws an exception if the
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Extract date (yyyy/mm/dd) from a timestamp in PostgreSQL
...0'::timestamp::date;
date
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2010-01-01
On the other hand you can use date_trunc function. The difference between them is that the latter returns the same data type like timestamptz keeping your time zone intact (if you need it).
=> select date_trunc('day', now());
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Cast an instance of a class to a @protocol in Objective-C
... edited Mar 21 '17 at 21:08
Alexander Abakumov
9,59199 gold badges6363 silver badges9999 bronze badges
answered Nov 26 '10 at 1:47
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Remove 'a' from legend when using aesthetics and geom_text
... this was not that obvious. A proper example would have used the OP's code and just added the missing argument like this:
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geom_text(aes(label=Species), show_guide = F) +
..
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What is the IntelliJ shortcut to create a local variable?
... This is the Introduce Variable refactoring. By default, select some text, and then hit Ctrl + Alt + V (for Mac: ⌘+⌥+V). If the expression is incomplete or invalid, IntelliJ will still make a good guess about what you meant and try to fix it for you.
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Ruby on Rails generates model field:type - what are the options for field:type?
I'm trying to generate a new model and forget the syntax for referencing another model's ID. I'd look it up myself, but I haven't figured out, among all my Ruby on Rails documentation links, how to find the definitive source.
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How to convert a char to a String?
I have a char and I need a String . How do I convert from one to the other?
12 Answers
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Responsive css background images
I have a website (g-floors.eu) and I want to make the background (in css I have defined a bg-image for the content) also responsive. Unfortunately I really don't have any idea on how to do this except for one thing that I can think of but it's quite a workaround. Creating multiple images and then us...
Server polling with AngularJS
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Assuming the above code is for pageA and controllerA. How do i stop this timer when I navigate to pageB and controllerB ?
– Varun Verma
Nov 21 '13 at 10:46
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