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In Bash, how can I check if a string begins with some value?
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This snippet on the Advanced Bash Scripting Guide says:
# The == comparison operator behaves differently within a double-brackets
# test than within single brackets.
[[ $a == z* ]] # True if $a starts with a "z" (wildcard m...
How do you create a random string that's suitable for a session ID in PostgreSQL?
..., so I tried SELECT md5(random()) , but that doesn't work. How can I do this?
12 Answers
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YouTube iframe API: how do I control an iframe player that's already in the HTML?
I want to be able to control iframe based YouTube players. This players will be already in the HTML, but I want to control them via the JavaScript API.
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Differences in string compare methods in C#
Comparing string in C# is pretty simple. In fact there are several ways to do it. I have listed some in the block below. What I am curious about are the differences between them and when one should be used over the others? Should one be avoided at all costs? Are there more I haven't listed?
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Is gcc std::unordered_map implementation slow? If so - why?
...e wrote a benchmark to figure out, how much slower our concurrent hash map is compared with std::unordered_map .
3 Answers...
Is there an easy way to return a string repeated X number of times?
...tations before a string based on an items depth and I'm wondering if there is a way to return a string repeated X times. Example:
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What is a software framework? [closed]
Can someone please explain me what a software framework is? Why do we need a framework? What does a framework do to make programming easier?
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Use 'import module' or 'from module import'?
I've tried to find a comprehensive guide on whether it is best to use import module or from module import . I've just started with Python and I'm trying to start off with best practices in mind.
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Invoke a callback at the end of a transition
...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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How to get a cross-origin resource sharing (CORS) post request working
... a machine on my local lan (machineA) that has two web servers. The first is the in-built one in XBMC (on port 8080) and displays our library. The second server is a CherryPy python script (port 8081) that I am using to trigger a file conversion on demand. The file conversion is triggered by a AJ...