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What do 'lazy' and 'greedy' mean in the context of regular expressions?
...hink that <.+> (. means any non newline character and + means one or more) would only match the <em> and the </em>, when in reality it will be very greedy, and go from the first < to the last >. This means it will match <em>Hello World</em> instead of what you wan...
When should I use Inline vs. External Javascript?
...due to the latency of making multiple HTTP requests. This makes the answer more complex: in most cases, having JavaScript external is still recommended. But for certain cases, especially very small pieces of code, inlining them into the site’s HTML makes sense.
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Implementing comparison operators via 'tuple' and 'tie', a good idea?
...as, especially if they are both of the same type. This gets even worse for more than two members, as nesting pair s pretty much sucks.
The other option for that is a tuple , either from Boost or C++11, but that doesn't really look any nicer and clearer. So I go back to writing the structs myself...
How can I process each letter of text using Javascript?
...in the other answer, you could use str.charAt(i) in place of the []'s. for more on why you should use charAt vs [], see string.charAt(x) or string[x]
– Julian Soro
May 29 '14 at 20:28
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How to run multiple Python versions on Windows
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Java Replacing multiple different substring in a string at once (or in the most efficient way)
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Note that one can use StringBuilder for a bit more speed. StringBuilder isn't synchronized. edit whoops only works with java 9 though
– Tinus Tate
Apr 26 '18 at 18:34
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Creating temporary files in bash
...platforms. The "X"s will generally get converted into some randomness, and more will probably be more random; however, some systems (busybox ash, for one) limit this randomness more significantly than others
By the way, safe creation of temporary files is important for more than just shell script...
How to log a method's execution time exactly in milliseconds?
...being a bad example. See also the related answer that explains this all in more detail: stackoverflow.com/a/30363702/43615
– Thomas Tempelmann
Jun 4 '16 at 13:36
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Extract substring in Bash
Given a filename in the form someletters_12345_moreleters.ext , I want to extract the 5 digits and put them into a variable.
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