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String difference in Bash
...u are in a bash session, you could do a:
diff <cmd1 <cmd2
diff <(foo | bar) <(baz | quux)
with < creating anonymous named pipes -- managed by bash -- so they are created and destroyed automatically, unlike temporary files.
So if you manage to isolate your two different string as p...
Why is extending native objects a bad practice?
...ody does it "the wrong way", and adds enumerable types to Object , practically destroying all loops on any object?
8 Answe...
django: BooleanField, how to set the default value to true?
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from django.db import models
class Foo(models.Model):
any_field = models.BooleanField(default=True)
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Why must we define both == and != in C#?
...tors is present, it will use the default reference equality operator, that all objects have, there is not an overload for it.1
Knowing that this is the case, the real question is: Why was this designed in this way and why doesn't the compiler figure it out on its own? A lot people are saying this ...
How to switch position of two items in a Python list?
...problem on the net (probably because switch, position, list and Python are all such overloaded words).
7 Answers
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Why can't I inherit static classes?
I have several classes that do not really need any state. From the organizational point of view, I would like to put them into hierarchy.
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Proper indentation for Python multiline strings
... and long if statements, though not mentioned for multiline strings. Personally this is one place I refuse to follow PEP8 (and use 4-space indenting instead), as I strongly dislike hanging indents, which for me obscure the proper structure of the program.
– bobince
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Adding a background image to a element
... like position, attachament
background CSS Property is a connection of all background-xxx propieties in that syntax:
background:
background-color
background-image
background-repeat
background-attachment
background-position;
Source: w3schools
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How does password salt help against a rainbow table attack?
... attack. However, the methods I've seen to implement this don't seem to really make the problem harder.
10 Answers
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Dynamic constant assignment
...ject itself is different each time the method is called. For example:
def foo
p "bar".object_id
end
foo #=> 15779172
foo #=> 15779112
Perhaps if you explained your use case—why you want to change the value of a constant in a method—we could help you with a better implementation.
Per...