item(index, [item])
Class: Tree.
Description:
Updates or gets an item at specified index.
Parameters:
| Name | Type | Description |
|---|---|---|
|
|
Array.<number> |
Index of the item to get or update. |
|
|
object |
Item object. Omit this argument to get the item instead of updating it. |
Returns:
[object|undefined|Tree] If item argument is passed, this Tree component is returned; otherwise an item at specified index is returned, or null if passed index is invalid.
Examples:
// update an item at index [0,3,5]
tree.item([0,3,5], {text:"New item text"});
// get an item at index [0,3,5]
let item = tree.item([0,3,5]);
console.log(item?.text); // checks if item is not undefined