p.
  <span class="location-badge">exported from <a href="/angular2/forms">angular2/forms</a></span>
  defined in <a href="https://github.com/angular/angular/tree/master/modules/angular2/src/forms/model.js#L219">angular2/src/forms/model.js (line 219)</a>

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  Defines a part of a form, of variable length, that can contain other controls.
  
  A `ControlArray` aggregates the values and errors of each <a href="angular2/forms/Control-class"><code>Control</code></a> in the group. Thus, if one of the controls 
  in a group is invalid, the entire group is invalid. Similarly, if a control changes its value, the entire group 
  changes as well.
  
  `ControlArray` is one of the three fundamental building blocks used to define forms in Angular, along with 
  <a href="angular2/forms/Control-class"><code>Control</code></a> and <a href="angular2/forms/ControlGroup-class"><code>ControlGroup</code></a>. <a href="angular2/forms/ControlGroup-class"><code>ControlGroup</code></a> can also contain other controls, but is of fixed 
  length.
  
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  h2 Members
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    h3 constructor

    
    pre.prettyprint
      code.
        constructor(controls:List&lt;AbstractControl&gt;, validator:Function = Validators.array)
    

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    h3 at

    
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      code.
        at(index:number)
    

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    h3 controls

    

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    h3 insert

    
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      code.
        insert(index:number, control:AbstractControl)
    

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    h3 length

    

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    h3 push

    
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      code.
        push(control:AbstractControl)
    

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    h3 removeAt

    
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      code.
        removeAt(index:number)
    

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