p.location-badge.
  exported from <a href='../lifecycle_hooks'>angular2/lifecycle_hooks</a>
  defined in <a href="https://github.com/angular/angular/tree/2.0.0-alpha.37/modules/angular2/src/core/compiler/interfaces.ts#L52-L72">angular2/src/core/compiler/interfaces.ts (line 52)</a>

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  Notify a directive when it has been checked the first time.
  
  `onInit` is called right after the directive's bindings have been checked for the first time,
  and before any of its children's bindings have been checked.
  
  It is invoked only once.
  
  ## Example
  
  ```
  @Component(...)
  class MyComponent implements OnInit {
    onInit(): void {
    }
  }
   ```
  
  
.l-main-section
  h2 Members
  .l-sub-section
    h3#onInit onInit

    
    pre.prettyprint
      code.
        onInit()
    
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