Array.splice(start, [deleteCount], [item1...N]) Last updated: 24. Jan 2023
Changes the contents of an array by removing or replacing existing elements and/or adding new elements at specified index.
Parameters
| Name | Type | Description |
|---|---|---|
| start | int | Index where to add and remove |
| deleteCount (optional) | int | Count of items to remove |
| item1...N (optional) | object | Items to add (specify from zero to many params) |
Returns
An array of the items that were removed.
Example
Code example (JS)
JS is normal JavaScript either running in the browser or on the Docly™ server.const months = ['Jan', 'March', 'April', 'June'];
months.splice(1, 0, 'Feb');
/* Inserts at index 1 */
write(months);
/* Expected output: Array ["Jan", "Feb", "March", "April", "June"] */
months.splice(4, 1, 'May');
/* Replaces 1 element at index 4 */
write(months);
/* Expected output: Array ["Jan", "Feb", "March", "April", "May"] */Output
The JS code above produces the output shown below:["Jan","Feb","March","April","June"]["Jan","Feb","March","April","May"]