Alternative version of is

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Description

If a function named is.class exists, call is.class(x). If not, call is(x, class).

Usage

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is2(x, class, .xname = get_name_in_parent(x))

Arguments

x

Input to check.

class

Target class that x maybe belong to.

.xname

Not intended to be used directly.

Value

TRUE if x belongs to the class and FALSE otherwise.

See Also

is, and assert_is_all_of for the corresponding assert fns.

Examples

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is2(1:5, "character")
is2(matrix(1:5), "character")
is2(1:5, c("character", "list", "numeric"))