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Accessing bash command line args $@ vs $*
...Let me illustrate the differences:
$ set -- "arg 1" "arg 2" "arg 3"
$ for word in $*; do echo "$word"; done
arg
1
arg
2
arg
3
$ for word in $@; do echo "$word"; done
arg
1
arg
2
arg
3
$ for word in "$*"; do echo "$word"; done
arg 1 arg 2 arg 3
$ for word in "$@"; do echo "$word"; done
arg...
Multiple Type Constraints in Swift
...here multiple types are involved.
You may still want to compose protocols for reuse in multiple places, or just to give the composed protocol a meaningful name.
Swift 5:
func someFunc(arg: SomeProtocol & SomeOtherProtocol) {
// stuff
}
This feels more natural as the protocols are next ...
Add a space (“ ”) after an element using :after
... supported in iE11 nor Edge (see caniuse.com/#search=white-space). is therefore the answer by user bradley.ayers better? (I don't know, there are other aspects like semantics or line-break behavior)
– chimos
Aug 23 '18 at 9:08
...
Ruby class types and case statements
.....
Understand that case is calling a threequal method (MyClass.===(item) for example), and that method can be defined to do whatever you want, and then you can use the case statement with precisionw
share
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How to show line number when executing bash script
... script would stop when error occurs. However, it's still rather difficult for me to locate which line did the execution stop in order to locate the problem.
Is there a method which can output the line number of the script before each line is executed?
Or output the line number before the command ex...
how to use “AND”, “OR” for RewriteCond on Apache?
Is this how to use AND, OR for RewriteCond on Apache?
3 Answers
3
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.gitignore exclude files in directory but not certain directories
...
The .gitignore files used for this purpose can be empty.
– kevpie
Apr 8 '11 at 21:10
2
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Post an empty body to REST API via HttpClient
...rences to some HttpContent.CreateEmpty() method, but I don't think that is for the Web API HttpClient code since I can't seem to find that method.
...
What is a method group in C#?
...
A method group is the name for a set of methods (that might be just one) - i.e. in theory the ToString method may have multiple overloads (plus any extension methods): ToString(), ToString(string format), etc - hence ToString by itself is a "method gro...
Getting “bytes.Buffer does not implement io.Writer” error message
...nt, err error)
}
It's b *Buffer, not b Buffer. (I also think it is weird for we can call a method by a variable or its pointer, but we can't assign a pointer to a non-pointer type variable.)
Besides, the compiler prompt is not clear enough:
bytes.Buffer does not implement io.Writer (Write method...