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Ruby custom error classes: inheritance of the message attribute
...y sets the message so you don't have to pass it to the constructor:
class MyCustomError < StandardError
attr_reader :object
def initialize(object)
@object = object
end
end
begin
raise MyCustomError.new("an object"), "a message"
rescue MyCustomError => e
puts e.message # => ...
What is the C runtime library?
... You haven't told what "C runtime library" is !!
– onmyway133
Apr 1 '14 at 6:19
4
@entropy: Sure ...
Understanding Canvas and Surface concepts
...
Great help, thank you! About answer 2. In my question I've meant standard views, not SurfaceViews. Suppose I have RelativeLayout with plenty of fields and buttons. In this case, is Surface attached to the whole window and shared by all Views in view hierarchy?
...
vs
...your editor so are usually best to keep as entities for clarity's sake (in my experience).
– squidbe
Dec 7 '12 at 23:11
...
Why do we need virtual functions in C++?
...undefined behavior so make sure you know what you're doing. To the best of my knowledge, this has not changed since before even C++98.
– Steve314
Jun 18 '17 at 19:29
11
...
How to create REST URLs without verbs?
...red Oct 24 '09 at 21:34
yfeldblumyfeldblum
62.2k1010 gold badges125125 silver badges167167 bronze badges
...
What are “first class” objects?
... This is true of modern Python. In old Python (version 1? it was before my time) you could not inherit from int. Thus the "old" versus "new-style classes" (and in 3, there are no old-style classes anymore).
– Keith Pinson
Mar 15 '13 at 3:50
...
What's Pros and Cons: putting javascript in head and putting just before the body close
... Canvas is declared. Is there a reason for this or how would i keep all of my Javascript in the <head> section of the file.
– Doug Hauf
Feb 24 '14 at 18:50
...
Why Large Object Heap and why do we care?
... answered Jan 21 '12 at 9:18
Myles McDonnellMyles McDonnell
11k1212 gold badges5454 silver badges9090 bronze badges
...
Python != operation vs “is not”
...
My favorite way to comprehend this is: Python's is is like Java's ==. Python's == is like Java's .equals(). Of course this only helps if you know Java.
– MatrixFrog
Feb 5 '10 at 20:54
...