N/ui/serverWidget Module
serverWidget.LayoutJustification
Enum Description: Holds the string values for supported justification layouts. This enum is used to set the value of the align parameter when List.addColumn(options) is called. JavaScript does not include an enumeration type. The SuiteScript 2.0 documentation utilizes the term enumeration (or enum) to describe the following: a plain JavaScript object with a flat, map-like structure. Within this object, each key points to a read-only string value.
Supported Script Types: SuiteScript 2.0 Suitelet Script Type and SuiteScript 2.0 User Event Script Type (beforeLoad(scriptContext))
Module: N/ui/serverWidget Module
Since: 2015.2
Search NetSuite - https://system.netsuite.com/app/help/helpcenter.nl?search=serverWidget.LayoutJustification

// Code Example 1

//Add additional code

//...

var list = serverWidget.createList({

    title : 'Simple List'

});

list.addColumn({

    id : 'column1',

    type : serverWidget.FieldType.TEXT,

    label : 'Text',

    align : serverWidget.LayoutJustification.RIGHT

});

//...

//Add additional code



//SOURCE: https://system.netsuite.com/app/help/helpcenter.nl?fid=section_4332671154.html