p.location-badge.
  exported from <a href='../annotations'>angular2/annotations</a>
  defined in <a href="https://github.com/angular/angular/tree/2.0.0-alpha.34/modules/angular2/src/core/compiler/interfaces.ts#L18-L24">angular2/src/core/compiler/interfaces.ts (line 18)</a>

:markdown
  Defines lifecycle method <a href='annotations/LifeCycleEvent#onCheck'>`LifeCycleEvent.onCheck`</a>
  called when a directive is being checked.
  
  
.l-main-section
  h2 Members
  .l-sub-section
    h3 onCheck

    
    pre.prettyprint
      code.
        onCheck()
    
    :markdown