display.grid.forEach()
The forEach() method executes a provided function once for each grid record.
Parameter
Callback function that receives the following arguments:
Record object - the object is a copy of the record; therefore, modifying the object will not change the record in the grid
Index - the zero-based index of the current grid record being processed
Records array - array representing all of the grid records
 Example
pjs.defineDisplay("display.json"); // assume display.json defines mygrid with fields named "product", "description", and "quantity"
display.mygrid.addRecords([
{ product: 1, description: "ITEM ONE", quantity: 15 },
{ product: 2, description: "ITEM TWO", quantity: 20 },
{ product: 3, description: "ITEM THREE", quantity: 12 },
{ product: 4, description: "ITEM FOUR", quantity: 18 }
]);
// Calculate quantity total using the forEach() method
var total = 0;
display.mygrid.forEach(function(record) {
total += record.quantity;
});