bag_keys()

Learn how to use the bag_keys() function to enumerate the root keys in a dynamic property bag object.

Enumerates all the root keys in a dynamic property bag object.

Syntax

bag_keys(object)

Parameters

Name	Type	Required	Description
object	`dynamic`	✔️	The property bag object for which to enumerate keys.

Returns

An array of keys, order is undetermined.

Example

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)

Output

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	[]

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