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Singular or plural controller and helper names in Rails
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actually this is the right answer b/c if you read it, it explains that plural is the right answer for a collection of resources. For a singleton resource, singular is the right answer. Examples in the documentation. And actually, this is well answered in this other post...
What is the canonical way to trim a string in Ruby without creating a new string?
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Btw, now ruby already supports just strip without "!".
Compare:
p "abc".strip! == " abc ".strip! # false, because "abc".strip! will return nil
p "abc".strip == " abc ".strip # true
Also it's impossible to strip without duplicates. Se...
How to redirect and append both stdout and stderr to a file with Bash?
... use, not change it within the same script (confusion!)
If your script already starts with #!/bin/sh (no matter if intended or not), then the Bash 4 solution, and in general any Bash-specific code, is not the way to go.
Also remember that Bash 4 &>> is just shorter syntax — it does no...
QLabel: set color of text and background
...method filling its bounding rect.
Today, I've open up the qt-assistant and read the style reference properties list. Affortunately, it has an example that states the following:
QLineEdit { background-color: rgb(255, 0, 0) }
Thats open up my mind in doing something like the code below, as an example:...
favicon.png vs favicon.ico - why should I use PNG instead of ICO?
...nity Wiki) due to numerous updates and notes from various others in this thread:
ICOs and PNGs both allow full alpha channel based transparency
ICO allows for backwards compatibility to older browsers (e.g. IE6)
PNG probably has broader tooling support for transparency, but you can find tools to c...
Use of Java's Collections.singletonList()?
....println("List value after: "+list);
}
}
Use it when code expects a read-only list, but you only want to pass one element in it. singletonList is (thread-)safe and fast.
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returning in the middle of a using block
...into. Or is that only expressible in IL ? (which I have never really tried reading before).
– Bart
Jan 21 '16 at 22:36
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Android: How can I validate EditText input?
...a example on the project home page on how to use annotations. You can also read the associated blog post where I have written sample codes on how to write custom rules for validations.
Here is a simple example that depicts the usage of the library.
@Required(order = 1)
@Email(order = 2)
private Ed...
Passing arrays as url parameter
...ize function.
It serializes any variable for storage or transfer. You can read about it in the php manual - serialize
The variable can be restored by using unserialize
So in the passing to the URL you use:
$url = urlencode(serialize($array))
and to restore the variable you use
$var = unseriali...
socket.io and session?
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I suggest not to entirely reinvent the wheel. The tools you need is already an npm package.I think this is what you need: session.socket.io
I am using it in these days and it will be very helpful I guess!! Linking the express-session to the socket.io layer will have so many advantages!
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