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How to remove from a map while iterating it?
...nary for loop here, since we are modifying the container itself. The range-based loop should be strictly reserved for situations where we only care about the elements. The syntax for the RBFL makes this clear by not even exposing the container inside the loop body.
Edit. Pre-C++11, you could not er...
How do I convert a Ruby class name to a underscore-delimited symbol?
...[^\^])([A-Z])/,'\1_\2').downcase.to_sym
end
end
def self.included(base)
base.extend(ClassMethods)
end
end
class ThisIsMyClass
include MyModule
end
ThisIsMyClass.class_to_sym #:this_is_my_class
share
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What is Type-safe?
... feature called covariance, this basically means that you can substitute a base type for a child type and not cause an error, for example:
public class Foo : Bar
{
}
Here, I created a new class (Foo) that subclasses Bar. I can now create a method:
void DoSomething(Bar myBar)
And call it us...
In C#, should I use string.Empty or String.Empty or “” to intitialize a string?
...se using string.Empty prevents you from attaining consistency in your code base: you must use two different entities to express the same thing. And to add to the list of things you can't do: you can't use string.Empty with attributes.
– Pragmateek
Nov 7 '13 at ...
JSON datetime between Python and JavaScript
...
The lambda can be adapted to call the base implementation on non-datetime types, so TypeError can be raised if needed: dthandler = lambda obj: obj.isoformat() if isinstance(obj, datetime) else json.JSONEncoder().default(obj)
– Pascal Bourque...
How can I check if a jQuery plugin is loaded?
...
64
if(jQuery.fn.pluginName) {...} is another option
– Nagyman
Jun 16 '10 at 14:55
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How can you profile a Python script?
...
Are you coloring based on the amount of calls? If so, you should color based on time because the function with the most calls isn't always the one that takes the most time.
– red
Aug 6 '13 at 12:21
...
Enum String Name from Value
...
64
Use this:
string bob = nameof(EnumDisplayStatus.Visible);
...
Targeting only Firefox with CSS
...r: red;
}
}
<h1>This should be red in FF</h1>
It's based on yet another Mozilla specific CSS extension. There's a whole list for these CSS extensions right here: Mozilla CSS Extensions.
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MySQL order by before group by
...values you will return the full details of that post.
See SQL Fiddle with Demo.
To expand on my comments about using a subquery to accurate return this data.
MySQL does not force you to GROUP BY every column that you include in the SELECT list. As a result, if you only GROUP BY one column but r...