bag_keys()
Enumerates all the root keys in a dynamic property-bag object.
Syntax
bag_keys(dynamic object)
Returns
An array of keys, order is undetermined.
Examples
datatable(index:long, d:dynamic) [
1, dynamic({'a':'b', 'c':123}),
2, dynamic({'a':'b', 'c':{'d':123}}),
3, dynamic({'a':'b', 'c':[{'d':123}]}),
4, dynamic(null),
5, dynamic({}),
6, dynamic('a'),
7, dynamic([])]
| extend keys = bag_keys(d)
| index | d | keys |
|---|---|---|
| 1 | { "a": "b", "c": 123 } |
[ "a", "c" ] |
| 2 | { "a": "b", "c": { "d": 123 } } |
[ "a", "c" ] |
| 3 | { "a": "b", "c": [ { "d": 123 } ] } |
[ "a", "c" ] |
| 4 | ||
| 5 | {} | [] |
| 6 | a | |
| 7 | [] |