Insert a new element into the selected ones in a ts_tree_jsonc object

Insert a new element into each selected array or object.

Usage

# S3 method for class 'ts_tree_jsonc'
ts_tree_insert(tree, new, key = NULL, at = Inf, options = NULL, ...)

Arguments

tree

ts_tree_jsonc object

new

New element to insert. Will be serialized with ts_serialize_jsonc().

key

Key of the new element, when inserting into an object.

at

What position to insert the new element at:

• 0: at the beginning,

• Inf: at the end,

• other numbers: after the specified element,

• a character scalar, the key after which the new element is inserted, if that key exists, when inserting into an object. If this key does not exist, then the new element is inserted at the end of the object.

options

Named list of formatting options, see tsjsonc options.

...

Must be empty currently, reserved for future use.

Value

The modified ts_tree_jsonc object.

Details

It is an error trying to insert into an element that is not an array and not an object.

Examples

library(ts)
json <- ts_parse_jsonc("{ \"a\": true, \"b\": [1, 2, 3] }")
json
#> # jsonc (1 line)
#> 1 | { "a": true, "b": [1, 2, 3] }

json |> ts_tree_select("b") |> ts_tree_insert("foo", at = 1)
#> # jsonc (6 lines)
#> 1 | { "a": true, "b": [
#> 2 |     1,
#> 3 |     "foo",
#> 4 |     2,
#> 5 |     3
#> 6 | ] }