every

Executes a callback function for every single item in the array and returns true or false depending if all the items in the array pass the condition. An equivalent of Array.prototype.every.

Parameters

callback Function

The function that will be executed for every item.

Returns

Boolean—Returns true if all items pass the test function condition. Otherwise, returns false.

Example - working with every method

<script>
  var arr = new kendo.data.ObservableArray([10, 15, 20, 25, 30]);

  var result = arr.every((item) => {return item > 20})
  var result2 = arr.every((item) => {return item < 40})
  /* The result can be observed in the DevTools(F12) console of the browser. */
  console.log(arr)
  console.log(result)
  console.log(result2)
</script>