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Way to ng-repeat defined number of times instead of repeating over array?
... can use 'slice'. e.g. group1: items.slice(0,3), group2: items.slice(3,6), etc.
– trevorc
Dec 6 '13 at 23:21
7
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What is this weird colon-member (“ : ”) syntax in the constructor?
...or<double> emptyVec(0);, std::vector<double> fullVec(10,23.);, etc. Only with the type removed, of course, because the type is in the member declaration.
– Steve Jessop
Nov 11 '09 at 1:03
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Set cURL to use local virtual hosts
...lookup returned the data in your command-line option. It works just like /etc/hosts should.
Note --resolve takes a port number, so for HTTPS you would use
curl --resolve 'yada.com:443:127.0.0.1' https://yada.com/something
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In pure functional languages, is there an algorithm to get the inverse function?
...to that later presented (more rigorously, more generally, more principled, etc.) in "for free".
– sclv
Nov 22 '12 at 4:59
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How to check whether a string is a valid HTTP URL?
...and Uri.TryCreate methods, but they seem to return true for file paths etc.
9 Answers
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Insert, on duplicate update in PostgreSQL?
...sient errors - reboots under load, client errors mid-transaction, crashes, etc. You must never, ever rely on SERIAL / SEQUENCE or AUTO_INCREMENT not having gaps. If you need gapless sequences they're more complex; you need to use a counter table usually. Google will tell you more. But be aware gaple...
A semantics for Bash scripts?
...s to a shell script can be accessed using numbered parameters, $1, $2, $3, etc. You can access all these parameters at once using "$@", which expansion has many things in common with arrays. You can set and change the positional parameters using the set or shift builtins, or simply by invoking the s...
Difference between single and double quotes in Bash
... double quotes will. For example: variables, backticks, certain \ escapes, etc.
Example:
$ echo "$(echo "upg")"
upg
$ echo '$(echo "upg")'
$(echo "upg")
The Bash manual has this to say:
3.1.2.2 Single Quotes
Enclosing characters in single quotes (') preserves the literal value of each ...
How do I pass extra arguments to a Python decorator?
...g functools.wraps is advisable -- it retains the original name, docstring, etc. of the wrapped function.
– AKX
Apr 16 '12 at 14:51
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How do I compare two strings in Perl?
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@Zon except that return values for eq, gt, lt etc are not correct ... They return true or false. Only cmp returns specific numeric values.
– Sinan Ünür
Apr 1 '15 at 16:58
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