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What is Delegate? [closed]
...elegates come in handy for things like event handlers, and such, where you do different things based on different events, for example.
Here's a reference for C# you can look at:
In C#, for example, let's say we had a calculation we wanted to do and we wanted to use a different calculation method w...
Check if all checkboxes are selected
How do I check if all checkboxes with class="abc" are selected?
9 Answers
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How do you know a variable type in java?
...an int variable, there's no way to write code that handles a int value and doesn't know that type. The matter is different in case you're handling a wrapper like Integer, but then the code of this answer works again.
– Joachim Sauer
Apr 20 '10 at 14:12
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How do I iterate through the files in a directory in Java?
...thousand. If you think you might ever run into a directory like that, then don't use recursion.
– Mike Baranczak
Jul 1 '10 at 4:06
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Regex (grep) for multi-line search needed [duplicate]
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Without the need to install the grep variant pcregrep, you can do multiline search with grep.
$ grep -Pzo "(?s)^(\s*)\N*main.*?{.*?^\1}" *.c
Explanation:
-P activate perl-regexp for grep (a powerful extension of regular expressions)
-z suppress newline at the end of line, substituti...
node.js database [closed]
...I'm assuming a json/nosql db would be preferable to a relational DB [I can do without any json/sql impedance mismatch]. I'm considering:
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Confused about __str__ on list in Python [duplicate]
...and that __str__ is something like a Python version of toString (while I do realize that Python is the older language).
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How do I get the height and width of the Android Navigation Bar programmatically?
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Thanks. +1. Do you know how stable this approach is? Are the resource identifiers going to be subject to change across different platform versions?
– Ben Pearson
Oct 30 '14 at 19:10
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What does numpy.random.seed(0) do?
What does np.random.seed do in the below code from a Scikit-Learn tutorial? I'm not very familiar with NumPy's random state generator stuff, so I'd really appreciate a layman's terms explanation of this.
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How do I trim whitespace?
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No need to list the whitespace characters: docs.python.org/2/library/string.html#string.whitespace
– jesuis
Mar 24 '14 at 13:56
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