map
The method executes the callback function for every single item in the array and returns a new array as a result. An equivalent of Array.prototype.map.
Parameters
callback Function
The function that will be executed for every item.
Returns
Array
—A new array with the results from the executed callback.
Example - working with map method
<script>
var arr = new kendo.data.ObservableArray([
{ id: 10, name: 'Apple', count: 5},
{ id: 20, name: 'Orange', count: 10},
{ id: 30, name: 'Milk', count: 12},
{ id: 40, name: 'Juice', count: 7},
{ id: 50, name: 'Melon', count: 20}
]);
var newArr = arr.map(item => { return item.count*3})
/* The result can be observed in the DevTools(F12) console of the browser. */
console.log(arr)
console.log(newArr)
</script>