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react-document-title

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Declarative, nested, stateful, isomorphic document.title for React

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React Document Title
====================

Provides a declarative way to specify `document.title` in a single-page app.  
This component can be used on server side as well.

Built with [React Side Effect](https://github.com/gaearon/react-side-effect).

## Installation

```
npm install --save react-document-title
```

Dependencies: React >= 0.13.0

## Features

* Does not emit DOM, not even a `<noscript>`;
* Like a normal React compoment, can use its parent's `props` and `state`;
* Can be defined in many places throughout the application;
* Supports arbitrary levels of nesting, so you can define app-wide and page-specific titles;
* Works just as well with isomorphic apps.

## Example

Assuming you use something like [react-router](https://github.com/rackt/react-router):

```javascript
function App() {
  // Use "My Web App" if no child overrides this
  return (
    <DocumentTitle title='My Web App'>
      <SomeRouter />
    </DocumentTitle>
  );
}

function HomePage() {
  // Use "Home" while this component is mounted
  return (
    <DocumentTitle title='Home'>
      <h1>Home, sweet home.</h1>
    </DocumentTitle>
  );
}

class NewArticlePage extends React.Component {
  constructor(props) {
    super(props);
    this.state = { title: 'Untitled' };
  }

render() {
    // Update using value from state while this component is mounted
    return (
      <DocumentTitle title={this.state.title}>
        <div>
          <h1>New Article</h1>
          <input
            value={this.state.title}
            onChange={(e) => this.setState({ title: e.target.value })}
          />
        </div>
      </DocumentTitle>
    );
  }
}
```

## Server Usage

If you use it on server, call `DocumentTitle.rewind()` **after rendering components to string** to retrieve the title given to the innermost `DocumentTitle`. You can then embed this title into HTML page template.

Because this component keeps track of mounted instances, **you have to make sure to call `rewind` on server**, or you'll get a memory leak.

## But What About Meta Tags?

Looking for something more powerful? Check out [React Helmet](https://github.com/nfl/react-helmet)!

react-document-title

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