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Differences between action and actionListener
...just specify exactly that string in the action attribute. Thus, this is totally clumsy:
<h:commandLink value="Go to next page" action="#{bean.goToNextpage}" />
With this senseless method returning a hardcoded string:
public String goToNextpage() {
return "nextpage";
}
Instead, just put t...
What does the slash mean in help() output?
...python functions.
Also see the Argument Clinic documentation:
To mark all parameters as positional-only in Argument Clinic, add a / on a line by itself after the last parameter, indented the same as the parameter lines.
and the (very recent addition to) the Python FAQ:
A slash in the argu...
Node.js Best Practice Exception Handling
... following information is more of a summary:
Safely "throwing" errors
Ideally we'd like to avoid uncaught errors as much as possible, as such, instead of literally throwing the error, we can instead safely "throw" the error using one of the following methods depending on our code architecture:
F...
How to get the mysql table columns data type?
...n't forget: AND INDEX_SCHEMA = 'database_name'
– Inshallah
Aug 6 '09 at 18:16
I personally tried this and would agree ...
Convert integer into its character equivalent, where 0 => a, 1 => b, etc
...his edit? I think it makes it harder to read. Now I have to scroll horizontally to read the code.
– z0r
May 11 '17 at 1:23
...
How can I call a custom Django manage.py command directly from a test driver?
...ts.
But if you by some reason cannot decouple logic form command you can call it from any code using call_command method like this:
from django.core.management import call_command
call_command('my_command', 'foo', bar='baz')
...
UITextField auto-capitalization type - iPhone App
...tfield.autocapitalizationType = .words
There are a few options here:
allCharacters is the same as double tapping the shift key, basically capslock.
none is pretty self-explanatory, keyboard will never try to capitalize letters.
sentences will try to capitalize the next word after an end mark p...
How to override trait function and call it from the overridden function?
...The trait is not a class. You can't access its members directly. It's basically just automated copy and paste...
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Why use Ruby instead of Smalltalk? [closed]
...hrough its adolescence. There are a lot of similarities between Ruby and Smalltalk -- maglev is a testament to that. Despite having a more unusual syntax, Smalltalk has all (if not more) of the object-oriented beauty of Ruby.
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Declaring and initializing variables within Java switches
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Switch statements are odd in terms of scoping, basically. From section 6.3 of the JLS:
The scope of a local variable declaration in a block (§14.4) is the rest of the block in which the declaration appears, starting with its own initializer and including any further decla...