How to bind (?) several variables in a complex way in AngularJS?

Question

Suppose some widget like range slider binds to a 2-element array. Also I want to display range limits in separate text fields. How to accomplish that?

 angular
        .module('myApp', ['ui.slider']);
        
		angular.module('myApp')
    			 .controller('MyController', MyController);
           
    function MyController() {
    		var vm = this;
        
        vm.slider = [5,15];
    }

<link href="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.11.4/jquery-ui.css" rel="stylesheet"/>

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.4/jquery.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.10.4/jquery-ui.js"></script>

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>

<script src="http://angular-ui.github.io/ui-slider/src/slider.js"></script>

<body ng-app="myApp">
    <div ng-controller="MyController as vm">
      		<strong>Range slider:</strong>
		      <div ui-slider="{range: true}" min="1" max="20" step="1" ng-model="vm.slider"></div>
          <strong>It's value is bound as an array:</strong><br>
		      <input type="text" ng-model="vm.slider" /><br>
          <strong>How to bind sepately:</strong><br>
		      From: <input type="text" ng-model="vm.sliderfrom" /> To: <input type="text" ng-model="vm.sliderto" /><br>
    </div>
</body>

I need to update array on each limit change and reverse. How to accomplish that?

Satpal · Accepted Answer · 2015-12-31 09:20:46Z

1

You can directly bind with array elements

From: <input type="text" ng-model="vm.slider[0]" />
To: <input type="text" ng-model="vm.slider[1]" />

angular
  .module('myApp', ['ui.slider']);

angular.module('myApp')
  .controller('MyController', MyController);

function MyController() {
  var vm = this;
  vm.slider = [5, 15];
}

<link href="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.11.4/jquery-ui.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.4/jquery.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.10.4/jquery-ui.js"></script>

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>

<script src="http://angular-ui.github.io/ui-slider/src/slider.js"></script>

<body ng-app="myApp">
  <div ng-controller="MyController as vm">
    <strong>Range slider:</strong>
    <div ui-slider="{range: true}" min="1" max="20" step="1" ng-model="vm.slider"></div>
    <strong>It's value is bound as an array:</strong>
    <br>
    <input type="text" ng-model="vm.slider" />
    <br>
    <strong>How to bind sepately:</strong>
    <br>From:
    <input type="text" ng-model="vm.slider[0]" />To:
    <input type="text" ng-model="vm.slider[1]" />
    <br>
  </div>
</body>

answered Dec 31, 2015 at 9:20

Satpal

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3 Comments

Dims Over a year ago

Array text field is not updated if upper limit text field changed, see: i.imgur.com/fEVwPm3.jpg

Satpal Over a year ago

@Dims, Its due to input initially vm.slider is binded using the toString() method i.e. [5, 15].toString() which will bind 5,15 later its not converted to array its plain text

Dims Over a year ago

So is it possible to fix?

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