NSC | How to Combine Items in Sales Orders using SuiteScript

If you are working on Sales Orders that contain the same item in different rows and would like to combine them into one, here is a sample code that may help:

/**
 *@NApiVersion2.x
 *@NScriptTypeUserEventScript
 *@NModuleScopeSameAccount
 */
define(['N/record'],

function(record){
   
    /**
     *Functiondefinitiontobetriggeredbeforerecordisloaded.
     *
     *@param{Object}scriptContext
     *@param{Record}scriptContext.newRecord-Newrecord
     *@param{string}scriptContext.type-Triggertype
     *@param{Form}scriptContext.form-Currentform
     *@Since2015.2
     */
    function beforeLoad(scriptContext){
    	vararrItems=[],itemSummary=[];
    	varsalesOrd=record.load({
			type:record.Type.SALES_ORDER,
			id	:4746
			});
    	
    	varitemCount=salesOrd.getLineCount('item');
    	
    	itemSummary[0]=salesOrd.getSublistValue({
			sublistId:'item',
		    fieldId:'item',
		    line:0
		});
    	
    	for(vari=0;i<itemCount;i++){    		
    		varitem=salesOrd.getSublistValue({
				sublistId:'item',
			    fieldId:'item',
			    line:i
			});