coalesce: Coalesce operator
In checkmate: Fast and Versatile Argument Checks
%??% R Documentation
Coalesce operator
Description
Returns the left hand side if not missing nor NULL, and
the right hand side otherwise.
Usage
lhs %??% rhs
Arguments
lhs
[any]
Left hand side of the operator. Is returned if not missing or NULL.
rhs
[any]
Right hand side of the operator. Is returned if lhs is missing or NULL.
Value
Either lhs or rhs.
Examples
print(NULL %??% 1 %??% 2)
print(names(iris) %??% letters[seq_len(ncol(iris))])
checkmate documentation built on Sept. 11, 2024, 8:40 p.m.
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| %??% | R Documentation |
Coalesce operator
Description
Returns the left hand side if not missing nor NULL, and
the right hand side otherwise.
Usage
lhs %??% rhs
Arguments
lhs |
[any] |
rhs |
[any] |
Value
Either lhs or rhs.
Examples
print(NULL %??% 1 %??% 2)
print(names(iris) %??% letters[seq_len(ncol(iris))])
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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