用子项方法转移道具中的成分

Question

Its possible to transfer component in props with children method?

I have to components:

 let a = (<div>
        <button onClick={TContainer.METHOD}>TuCLIK</button>
  </div>);

 <TContainer data={ restaurantList } component={a}/>

I want to call method in childen but create element in parent. I want to pass this component on props.

If its possible i dont know what writing in TContainer.METHOD to call childen method

Answer 1

You are not passing a component in your props, it's an expression.
A component should be either a class the extends React.Component or a function that returns a jsx markup.
Now when we know that components are just functions, we know that we can pass parameters to them, hence we can pass a function reference as a parameter:

let A = (onClick) => <div><button onClick={onClick}>TuCLIK</button></div>;
<TContainer data={ restaurantList } component={<A onClick={TContainer.METHOD} />}/>

Note that components should be capitalized.

Edit
As a followup to your comment, sorry but i misunderstood your question i guess.
You can't pass a reference of a method from a React component like that.

• We can use couple of approaches regarding this scenario, one of them is to use this.props.children and pass the child component as a child.
  For example - <Parant><Child/></Parent>
• We can pass the child component as a prop.
  For example - <Parent component={Child} /> or <Parent component={<Child />} />
• We can write the parent component as a HOC and wrap the child with it.
  For example - Parent(Child)

In all the above examples you can't pass directly a reference of a function that is declared inside the parent's scope (as a prop to the child).
In order to pass the child a prop within the parent's internal scope you should do it inside the render method.
For example:

  render() {
    return (
      <div>
        <this.props.component onClick={this.handleClick}/>
      </div>
    );
  }

This is a snippet that demonstrate one of the examples above:

 const Child = ({onClick}) => <div onClick={onClick}>Im a child, Click me!</div> class Parent extends React.Component { constructor(props){ super(props); this.state = { counter: 0 } this.addCount = this.addCount.bind(this); } addCount(){ this.setState({counter: this.state.counter + 1}); } render() { return ( <div> <div>{`Count = ${this.state.counter}`}</div> <this.props.component onClick={this.addCount}/> </div> ); } } const App = () => <Parent component={Child} />; ReactDOM.render(<App />, document.getElementById('root')); 

 <script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script> <div id="root"></div>