Using global variable between SS 2.0 Client Script / User Event Script entry points (Best Practice)

@NApiVersion

Hello NetSuite Gurus,

l want to use global variable holding script parameters between SS 2.0 Client Script / User Event Script entry points, but I'm not sure if this is right / best practice. Look at my example below and give me solution if this is wrong or what is the best practice for doing this.

/** * @NApiVersion 2.x * @NScriptType ClientScript * @NModuleScope SameAccount */define([        'N/runtime',        'N/log'    ],    function (        runtime,        log    ) {        var parameters = getClientScriptParameters();        function validateLine(context) {            /* Use parameters.subsidiary here */            alert(parameters.subsidiary);            return true;        }        function fieldChanged(context) {            /* Use parameters.subsidiary here */            alert(parameters.subsidiary);        }        function postSourcing(context) {            /* Use parameters.subsidiary here */            alert(parameters.subsidiary);        }        function getClientScriptParameters() {             var script = runtime.getCurrentScript();            var parameters = {};            /* Client Script Parameters */            parameters.subsidiary =                parseInt(script.getParameter({                    name: 'custscript_subsidiary'                }), 10);            return parameters;        }        return {            validateLine: validateLine,            fieldChanged: fieldChanged,            postSourcing: postSourcing        };    });