Typed list

A list is a vector of other robjects, which may or may not be named.

Usage

ts_list(..., default = NULL)

Arguments

...

A list of types, named or unnamed.

default

Default value for the type (optional).

Value

A ts object that accepts lists with the specified types.

Details

There are five types of lists we can define:

1. Unknown list

2. Known, named list (e.g., list(x = 1:5, y = 'hello world')). This is an object in JS.

3. Known, unnamed list (e.g., list(1:5, 'hello world')). This is an array in JS.

4. Named list of a single datatype (e.g., list(fit1 = lm(...), fit2 = lm(...), ...)), where the names and length are not known ahead of time. This is a record<string, type> in JS.

5. Unnamed list of a single datatype (e.g., list(lm(...), lm(...), ...)), where the length is unknown ahead of time. This is an Array in JS.

Examples

x <- ts_list(a = ts_integer(1), b = ts_character(1))
x$check(list(a = 1L, b = "a"))
#> $a
#> [1] 1
#> 
#> $b
#> [1] "a"
#>