title: What is {this.props.children} and when you should use it?
body: <p>Being a beginner to React world, I want to understand in depth what happens when I use <code>{this.props.children}</code> and what are the situations to use the same. What is the relevance of it in below code snippet?</p>
  
  <pre><code>render() {
    if (this.props.appLoaded) {
      return (
        &lt;div&gt;
          &lt;Header
            appName={this.props.appName}
            currentUser={this.props.currentUser}
          /&gt;
          {this.props.children}
        &lt;/div&gt;
      );
    }
  }
  </code></pre>