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What is the fastest or most elegant way to compute a set difference using Javascript arrays?
Let A and B be two sets. I'm looking for really fast or elegant ways to compute the set difference ( A - B or A \B , depending on your preference) between them. The two sets are stored and manipulated as Javascript arrays, as the title says.
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How to pass arguments to a Button command in Tkinter?
Suppose I have the following Button made with Tkinter in Python:
18 Answers
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Can I use a binary literal in C or C++?
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You can use BOOST_BINARY while waiting for C++0x. :) BOOST_BINARY arguably has an advantage over template implementation insofar as it can be used in C programs as well (it is 100% preprocessor-driven.)
To do the converse (i.e. print out a number in binary form)...
How to use Regular Expressions (Regex) in Microsoft Excel both in-cell and loops
How can I use regular expressions in Excel and take advantage of Excel's powerful grid-like setup for data manipulation?
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Execution time of C program
...s. I need to be able to record the execution time (which could be anywhere from 1 second to several minutes). I have searched for answers, but they all seem to suggest using the clock() function, which then involves calculating the number of clocks the program took divided by the Clocks_per_secon...
How to make layout with View fill the remaining space?
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Answer from woodshy worked for me, and it is simpler than the answer by Ungureanu Liviu since it does not use RelativeLayout.
I am giving my layout for clarity:
<LinearLayout
android:layout_width="fill_parent"
andro...
Bash function to find newest file matching pattern
In Bash, I would like to create a function that returns the filename of the newest file that matches a certain pattern. For example, I have a directory of files like:
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Converting bool to text in C++
...rt a boolean value to a string such that 1 turns to "true" and 0 turns to "false"? I could just use an if statement, but it would be nice to know if there is a way to do that with the language or standard libraries. Plus, I'm a pedant. :)
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How can I make a multipart/form-data POST request using Java?
In the days of version 3.x of Apache Commons HttpClient, making a multipart/form-data POST request was possible ( an example from 2004 ). Unfortunately this is no longer possible in version 4.0 of HttpClient .
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Invoke a callback at the end of a transition
I need to make a FadeOut method (similar to jQuery) using D3.js . What I need to do is to set the opacity to 0 using transition() .
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