Sets the property as defined in key of each group member to the given value.
| name | type | arguments | Default | description |
|---|---|---|---|---|
| key | string |
The property to be updated. |
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| value | number |
The amount to set the property to. |
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| step | number | <optional> | 0 |
This is added to the |
| index | number | <optional> | 0 |
An optional offset to start searching from within the items array. |
| direction | number | <optional> | 1 |
The direction to iterate through the array. 1 is from beginning to end, -1 from end to beginning. |
This Group object.