Search to get the item list from purchase order

let poSearch=search.create({
type: search.Type.PURCHASE_ORDER,
filters: [‘internalid’, ‘is’, poId],
columns: [‘item’,’quantity’],
});
let itemRows = [];
poSearch.run().each(function (results) {
let item = results.getText(‘item’);
let quantity = results.getValue(‘quantity’);
if (item && quantity) {
itemRows.push({ item, quantity });
}
return true
});