N/ui/serverWidget Module
Form.addSubmitButton()
Method Description: Adds a submit button to a form. If the row count exceeds 25, sorting is not supported on static sublists created using this method.
Returns: serverWidget.Button object
Supported Script Types: SuiteScript 2.0 Suitelet Script Type and SuiteScript 2.0 User Event Script Type (beforeLoad(scriptContext))
Governance: None
Module: N/ui/serverWidget Module
Since: 2016.1
Search NetSuite - https://system.netsuite.com/app/help/helpcenter.nl?search=Form.addSubmitButton(options)

// Code Example 1

//Add additional code

//...

var form = serverWidget.createForm({

    title : 'Simple Form'

});

form.addSubmitButton({

    label : 'Submit Button'

});

//...

//Add additional code



//SOURCE: https://system.netsuite.com/app/help/helpcenter.nl?fid=section_4543597606.html