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What is the difference between const_iterator and non-const iterator in the C++ STL?
What is the difference between a const_iterator and an iterator and where would you use one over the other?
7 Answers
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Traverse a list in reverse order in Python
...reversed() function:
>>> a = ["foo", "bar", "baz"]
>>> for i in reversed(a):
... print(i)
...
baz
bar
foo
To also access the original index, use enumerate() on your list before passing it to reversed():
>>> for i, e in reversed(list(enumerate(a))):
... print(i...
Use of def, val, and var in scala
... because I used def in def person = new Person("Kumar",12) . If I use var or val the output is 20 . I understand the default is val in scala. This:
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Is there a TRY CATCH command in Bash
...es.
There is no try/catch in bash; however, one can achieve similar behavior using && or ||.
Using ||:
if command1 fails then command2 runs as follows
command1 || command2
Similarly, using &&, command2 will run if command1 is successful
The closest approximation of try/catch i...
What is the exact meaning of Git Bash?
I have been working with Git Bash for the last two days. I know now the basic operations such as commit , push , pull , fetch , and merge . But I still don't know what Git Bash itself actually is!
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Is a memory leak created if a MemoryStream in .NET is not closed?
...s2 gets Disposed.
It will eventually get cleaned up by the garbage collector, but it is always good practice to call Dispose. If you run FxCop on your code, it would flag it as a warning.
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How to change cursor from pointer to finger using jQuery?
This is probably really easy, but I've never done it before. How do you change your cursor to the finger (like for clicking on links) instead of the regular pointer?
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Appending a line to a file only if it does not already exist
...e
-F pattern is a plain string
https://linux.die.net/man/1/grep
Edit:
incorporated @cerin and @thijs-wouters suggestions.
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Edit line thickness of CSS 'underline' attribute
...This is another heading</u></h4>
CSS :
u {
text-decoration: none;
border-bottom: 10px solid black;
}
Here is an example: http://jsfiddle.net/AQ9rL/
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Relative imports in Python 3
I want to import a function from another file in the same directory.
13 Answers
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