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What are type lambdas in Scala and what are their benefits?
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(1, 2).map(a => a + 1) // (1, 3)
If you use IntelliJ, you can enable Settings, Code Style, Scala, Folding, Type Lambdas. This then hides the crufty parts of the syntax, and presents the more palatable:
Functor[[a]=(Int, a)].map((1, 2))(a => a + 1)) // (1, 3)
A future version of Scala mig...
Using python “with” statement with try-except block
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Ruby: How to turn a hash into HTTP parameters?
... "q=ruby&q=perl&lang=en"
You'll notice that array values are not set with key names containing [] like we've all become used to in query strings. The spec that encode_www_form uses is in accordance with the HTML5 definition of application/x-www-form-urlencoded data.
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How to force push a reset to remote repository?
...s config. If you change that, git push --force should work.
To change the setting, you need access to the machine with the remote repository. From there, do git config receive.denynonfastforwards false.
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Unix shell script find out which directory the script file resides?
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#!/bin/tcsh
# Absolute path to this script, e.g. /home/user/bin/foo.csh
set SCRIPT=`readlink -f "$0"`
# Absolute path this script is in, thus /home/user/bin
set SCRIPTPATH=`dirname "$SCRIPT"`
echo $SCRIPTPATH
See also: https://stackoverflow.com/a/246128/59087
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Efficient way to return a std::vector in c++
...void) { return strings; };
int main(int argc, char * argv[]){
// set up the vector of strings to hold however
// many strings the user provides on the command line
for(int idx=1; (idx<argc); ++idx){
strings.push_back(argv[idx]);
}
// now, iterate the st...
can't push to branch after rebase
...-branch'
So all developers topic branches reside within their own nested set.
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What does `someObject.new` do in Java?
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Colspan/Rowspan for elements whose display is set to table-cell
...d 5 cells makes things tricky, because words stretches css-cells, overflow-settings doesn't seem to make difference. You also need to recalculate width for div.colspan>div>div.
– F-3000
Aug 16 '17 at 21:55
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How to count duplicate value in an array in javascript
...lke: The expression counts[x] || 0 returns the value of counts[x] if it is set, otherwise 0. Then just add one and set it again in the object and the count is done.
– Constantinius
Feb 7 '17 at 11:52
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