How to get the value of a checkbox in angular?

Question

Angular

<div class="checkbox">
          <label>
            <input type="checkbox" ng-model="ch1" value="10000"> Услуга 1
          </label>
        </div>
        <div class="checkbox">
            <label>
              <input type="checkbox" ng-model="ch2" value="10000"> Услуга 2
            </label>
        </div>
      

    <span>Стоимость услуг составила: </span><span>{{ch1 + ch2}}</span>

It is necessary that the sum of the value checkboxes be displayed in the span. But in response to change, a true value (that is, 1) is displayed, and 1 + 1 is summed up.
What am I doing wrong?

Answer 1

ng-true-value="10000" ng-false-value="0"

Answer 2

read documentation https://docs.angularjs.org/api/ng/input/input%5Bch...

Answer 3

Through ng-change, do everything .. into a separate variable and that's it .... and there will be happiness ..
https://docs.angularjs.org/api/ng/directive/ngChange