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Scala underscore - ERROR: missing parameter type for expanded function
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It expands to:
myStrings.foreach(println(x => x.toString))
You want:
myStrings.foreach(x => println(x.toString))
The placeholder syntax for anonymous functions replaces the smallest possible containing expression with a function.
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Static implicit operator
...new XmlBase();
XElement myElement = myBase;
And the compiler won't complain! At runtime, the conversion operator will be executed - passing myBase in as the argument, and returning a valid XElement as the result.
It's a way for you as a developer to tell the compiler:
"even though these look ...
What does '--set-upstream' do?
...ull command (with the current local branch checked-out),
will attempt to bring in commits from the <remote-branch> into the current local branch.
One way to avoid having to explicitly type --set-upstream is to use its shorthand flag -u as follows:
git push -u origin local-branch
This sets t...
Python - Passing a function into another function
I am solving a puzzle using python and depending on which puzzle I am solving I will have to use a special set of rules. How can I pass a function into another function in Python?
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Get time difference between two dates in seconds
I'm trying to get a difference between two dates in seconds. The logic would be like this :
6 Answers
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How can I wrap text to some length in Vim?
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You can actually do two things:
Let vim format (i.e.change) your text to have shorter lines, by inserting linebreaks
Leave lines as they are, but display them wrapped
Which do you want?
Option 1 would be achieved by setting textwidth (for example...
Referring to a file relative to executing script
In a bash script I'm writing, I use source to include the variable defined in a configuration file. The script to be executed is act.sh , while the script to be source d is act.conf.sh , so in act.sh I have:
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How to delete last character from a string using jQuery?
How to delete last character from a string for instance in 123-4- when I delete 4 it should display 123- using jQuery .
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What's the difference between Protocol Buffers and Flatbuffers?
...ere any big difference between them? Is it a lot of work to convert code using Protocol Buffers to use FlatBuffers ?
1 A...
Ruby regular expression using variable name
Is is possible to create/use a regular expression pattern in ruby that is based on the value of a variable name?
5 Answers
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