Insert After

Description

This operation inserts a new value after an existing value in a list.

Method

Backendless.Hive(hiveName).ListStore(keyName).insertAfter(valueToInsert, anchorValue): Promise<number>;

where:

Argument	Description
hiveName	Name of a hive where the operation is performed. String value.
keyName	List name to add a new value. String value.
valueToInsert	New value to add to the list. Can be of any JavaScript data type.
anchorValue	Value which is used as a position anchor. Must be a value that is already present in the list.

Return Value

The number of values in the list after the insertion operation is complete.

Example

The example below inserts the value 'Grapes' after the 'Oranges' value in the 'fruits' list.

await Backendless.Hive('demoHive').ListStore('fruits').insertAfter('Grapes', 'Oranges')

where:

Argument	Description
'demoHive'	Name of a hive where the operation is performed.
'fruits'	Key name identifying a list where a new value is inserted.

Codeless Reference

where:

Argument	Description
hive name	Name of a hive where the operation is performed.
key name	Key name identifying a list.
item	New item that must be added to the list.
after item	Value which is used as a position anchor. Must be a value that already exists in the list. The new value is insert after this one.

Returns the number of values in the list after the insertion operation is complete.

Consider the following List storage:

The example below inserts a new item "Dave" after the selected anchor value "Charlie":