Adds an item to list, starting at a specified index. Each item must be unique within the list.
name | type | arguments | Default | description |
---|---|---|---|---|
child | * |
The item, or array of items, to add to the list. |
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index | number | <optional> | 0 |
The index in the list at which the element(s) will be inserted. |
skipCallback | boolean | <optional> | false |
Skip calling the List.addCallback if this child is added successfully. |
The List's underlying array.