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Using NSPredicate to filter an NSArray based on NSDictionary keys
I have an array of dictionaries.
6 Answers
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How should one use std::optional?
I'm reading the documentation of std::experimental::optional and I have a good idea about what it does, but I don't understand when I should use it or how I should use it. The site doesn't contain any examples as of yet which leaves it harder for me to grasp the true concept of this object. When...
Pipe output and capture exit status in Bash
I want to execute a long running command in Bash, and both capture its exit status, and tee its output.
15 Answers
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Escaping a forward slash in a regular expression
My question is a simple one, and it is about regular expression escaping. Do you have to escape a forward slash / in a regular expression? And how would you go about doing it?
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Node.js client for a socket.io server
I have a socket.io server running and a matching webpage with a socket.io.js client. All works fine.
5 Answers
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How to read and write excel file
I want to read and write an Excel file from Java with 3 columns and N rows, printing one string in each cell. Can anyone give me simple code snippet for this? Do I need to use any external lib or does Java have built-in support for it?
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HTML5 input type range show range value
I am making a website where I want to use range slider(I know it only supports webkit browsers).
12 Answers
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How to check a string for specific characters?
How can I check if a string has several specific characters in it using Python 2?
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How to horizontally center a
How can I horizontally center a <div> within another <div> using CSS?
112 Answers
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Why does C++ rand() seem to generate only numbers of the same order of magnitude?
In a small application written in C/C++, I am facing a problem with the rand function and maybe the seed :
9 Answers
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