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How to implement Enums in Ruby?
... (FOO notation).
Symbols are appropriate when you want to enhance readability without littering code with literal strings.
postal_code[:minnesota] = "MN"
postal_code[:new_york] = "NY"
Constants are appropriate when you have an underlying value that is important. Just declare a module to hold you...
Looping a video with AVFoundation AVPlayer?
...
You can get a Notification when the player ends. Check AVPlayerItemDidPlayToEndTimeNotification
When setting up the player:
ObjC
avPlayer.actionAtItemEnd = AVPlayerActionAtItemEndNone;
[[NSNotificationCenter defaultCenter] addObserver:self
...
Safe integer parsing in Ruby
I have a string, say '123' , and I want to convert it to the integer 123 .
8 Answers
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Get the Query Executed in Laravel 3/4
...pretty neat. You can read for instructions on how to install in their repository.
Note for Laravel 5 users: You'll need to call DB::enableQueryLog() before executing the query. Either just above the line that runs the query or inside a middleware.
Laravel 3
In Laravel 3, you can get the last ex...
Chrome desktop notification example [closed]
...appear automatically after a few seconds
Service Worker notifications - a bit more complicated, but they can work in the background (even after the page is closed), are persistent, and support action buttons
The API call takes the same parameters (except for actions - not available on desktop noti...
Angular js init ng-model from default values
Say you have a form that has values loaded from database. How do you initialize ng-model?
14 Answers
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Get size of all tables in database
I have inherited a fairly large SQL Server database. It seems to take up more space than I would expect, given the data it contains.
...
How to use enums as flags in C++?
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The "correct" way is to define bit operators for the enum, as:
enum AnimalFlags
{
HasClaws = 1,
CanFly = 2,
EatsFish = 4,
Endangered = 8
};
inline AnimalFlags operator|(AnimalFlags a, AnimalFlags b)
{
return static_cast<Anim...
How to hide elements without having them take space on the page?
I'm using visibility:hidden to hide certain elements, but they still take up space on the page while hidden.
12 Answers
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What are the Ruby Gotchas a newbie should be warned about? [closed]
I have recently learned the Ruby programming language, and all in all it is a good language. But I was quite surprised to see that it was not as simple as I had expected. More precisely, the "rule of least-surprise" did not seem very respected to me (of course this is quite subjective). For examp...