The identity (trivial lens)

This lens focuses on the whole object

id_l

Format

An object of class lens of length 2.

Examples

x <- 1:10
view(x, id_l)
#>  [1]  1  2  3  4  5  6  7  8  9 10
head(set(x, id_l, iris))
#>   Sepal.Length Sepal.Width Petal.Length Petal.Width Species
#> 1          5.1         3.5          1.4         0.2  setosa
#> 2          4.9         3.0          1.4         0.2  setosa
#> 3          4.7         3.2          1.3         0.2  setosa
#> 4          4.6         3.1          1.5         0.2  setosa
#> 5          5.0         3.6          1.4         0.2  setosa
#> 6          5.4         3.9          1.7         0.4  setosa