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Mixin vs inheritance
...riety of parent classes. Mixins may call a method (for example sayHello(): String) even though they do not define such a method.
mixin M {
name: String
defmethod greetings() { print sayHello() + " " + name}
}
As you see, you can call sayHello() even though it is not defined anywhere. If ...
How to open files relative to home directory
... character.
From the File documentation:
absolute_path(file_name [, dir_string] ) → abs_file_name
Converts a pathname to an absolute pathname. Relative paths are referenced from the current working directory of the process unless dir_string is given, in which case it will be used as the st...
Prevent Caching in ASP.NET MVC for specific actions using an attribute
... no jQuery expert) that cache:false only makes jQuery tack on to the query string a changing value to "trick" the browser into thinking the request is for something else. In theory, this means the browser would still cache the results, just wouldn't use the cached results. Should be more efficient o...
Unable to find a locale path to store translations for file __init__.py
I'm trying to translate a Django app. I created some strings with {% trans %} in my templates. However, when I execute the following command in my app folder, I receive an error message:
...
What's the difference between process.cwd() vs __dirname?
... js doc
process.cwd()
cwd is a method of global object process, returns a string value which is the current working directory of the Node.js process.
As per node js doc
__dirname
The directory name of current script as a string value. __dirname is not actually a global but rather local to each mo...
“Templates can be used only with field access, property access, single-dimension array index, or sin
... this:
class TrainerViewModel
{
private Trainer _trainer;
public string ShortDescription
{
get
{
return _trainer.Description.ToString().Substring(0, 100);
}
}
public TrainerViewModel(Trainer trainer)
{
_trainer = trainer;
}
}...
Rails migrations: Undo default setting for a column
...ip DEFAULT at schema level:
def self.up
change_column :table, :column, :string, :null => false, :default => ""
change_column_default(:table, :column, nil)
end
share
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improve this answer...
When - and why - should you store data in the Windows Registry?
... intuitive to humans), require very specific open/close "tags", connection strings cannot be set at run-time, setup projects cannot write settings (as easily as registry), cannot easily determine user.config file and user settings are blown with each new revision installed.
Solution: Use the ITEM me...
Python regex find all overlapping matches?
...ou're interested in, but the actual match is technically the zero-width substring before the lookahead, so the matches are technically non-overlapping:
import re
s = "123456789123456789"
matches = re.finditer(r'(?=(\d{10}))',s)
results = [int(match.group(1)) for match in matches]
# results:
# [12...
How to implement a custom AlertDialog View
...ntent"
android:layout_height="wrap_content"
android:text="@string/show_password"
android:id="@+id/show_password_checkbox"
android:layout_gravity="left|center_vertical"
android:checked="false"/>
</LinearLayout>
...