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:documentationPath: /plugins/transforms/
:language: en_US
:page-alternativeEditUrl: https://github.com/apache/incubator-hop/edit/master/plugins/transforms/javascript/src/main/doc/javascript.adoc

= JavaScript

== Description

The JavaScript transform allows you to create JavaScript scripts for each transform.

== Options

[width="90%", options="header"]
|===
|Option|Description
|Transform name|Name of the transform this name has to be unique in a single pipeline.
|Scripts|Displays a list of scripts you have created in this transform.
|Constants|A list of pre-defined, static constants.
|Functions|Contains a variety of String, Numeric, Date, Logic and specialized functions you can use to create your script. To add a function to your script, simply double-click on the function or drag it to the location in your script that you wish to insert it.
|Input Fields|A list of inputs coming into the transform. Double-click or use drag and drop to insert the field into your script.
|Output Fields|A list of outputs for the transform.
|Java Script|This section is where you edit the script for this transform. You can insert functions, constants, input fields, etc. from the tree control on the left by double-clicking on the node you wish to insert or by dragging the object onto the Java Script panel.
|Fields|The Fields table contains a list of variables from your script including the ability to add metadata like a descriptive name.
|Get Variables|Retrieves a list of variables from your script.
|Test script|Use this button to test the syntax of your script.
|===