CODE EXAMPLE FOR JAVASCRIPT

How to call keyup function on textbox for every dynamic generated form in Angular8

calculateBCT($event, index: number) {
      // Your existing logic goes here...
      const calculatedResult = result ? result : 0;
      // In below code, please put some checks to ensure that formControl does exist
      const formControl = this.itemTypes().at(index).get('avgCapacity');
      formControl.setValue(calculatedResult);
    }