# script filter

<div align="left"><img src="https://thingsboard.io/images/user-guide/rule-engine-2-0/nodes/filter-script.png" alt="image"></div>

Evaluates incoming Message with configured JavaScript condition.

JavaScript function receive 3 input parameters:

* `msg` - is a Message payload.
* `metadata` - is a Message metadata.
* `msgType` - is a Message type.

Script should return Boolean value. If **True** - send Message via **True** chain, otherwise **False** chain is used.