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Peek at the Back Element

Source: R/30-api-flexseq-ends.R
peek_back.Rd

Returns the last element without modifying the sequence.

Usage

peek_back(x)

Arguments

x

A flexseq.

Value

Last element, or NULL when x is empty.

Details

Returns the payload element without modifying x.

Examples

x <- flexseq("a", "b", "c")
peek_back(x)
#> [1] "c"

peek_back(flexseq())
#> NULL