How to avoid extra wrapping in React?

Question

Today I have started learning ReactJS and after an hour faced with the problem.. I want to insert a component which has two rows inside a div on the page.A simplified exampl

Answer 1

There is workaround too. The below block code generates fragment without the need of React.Fragment.

return [1,2,3].map(i=>{
if(i===1) return <div key={i}>First item</div>
if(i===2) return <div key={i}>Second item</div>
return <div key={i}>Third item</div>
})

Answer 2

This requirement was removed in React version (16.0)]1, so now you are able to avoid that wrapper.

You can use React.Fragment to render a list of elements without creating a parent node, official example:

render() {
  return (
    <React.Fragment>
      <ChildA />
      <ChildB />
      <ChildC />
    </React.Fragment>
  );
}

More here: Fragments

Answer 3

This is still required, BUT React now make sure to create elements without creating an additional DOM element.

The extra wrapping needed (normally with a parent div) because Reacts createElement method require a type parameter which is either a tag name string (such as 'div' or 'span'), a React component type (a class or a function). But this was before they introduce React Fragment.

Refer this NEW api doc for createElement

React.createElement : Create and return a new React element of the given type. The type argument can be either a tag name string (such as 'div' or 'span'), a React component type (a class or a function), or a React fragment type.

here is the official example, Refer React.Fragment.

render() {
  return (
    <React.Fragment>
      Some text.
      <h2>A heading</h2>
    </React.Fragment>
  );
}

Answer 4

You won't be able to get rid of that div element. React.render() needs to return one valid DOM node.