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Length

Description

This operation counts the number of elements in the map and returns the total.

Method

Backendless.Hive(hiveName).MapStore(keyName).length(): Promise<number>;

where:

Argument                Description
hiveName Name of a hive where the operation is performed. String value.
keyName Key name identifying a map. String value.

Return Value


The total number of items stored in the specified map.

Example

The example below returns the number of items stored in the 'fruits' map.

await Backendless.Hive('groceryStore').MapStore('fruits').length()

where:

Argument                Description
'groceryStore' Name of a hive where the operation is performed.
'fruits' Key name identifying a map.


Codeless Reference
map_api_get_keys_count

where:

Argument                Description
hive name Name of a hive where the operation is performed.
key name Key name identifying a map.

Returns the total number of items stored in the specified map.

Consider the following Map storage:
map_apI_example_map_store

The example below counts the number of values in the "fruits" map:

map_api_example_get_keys_couint