CODEWITHSUNDEEP
reactjs
kristian nissen
kristian nissen

Reputation: 2907

React rendering nested json

I have some json looking like this

[
    {
    "name": "Hello Kitty",
    "items": [
        {
        "name": "Kitty Muu Muu"
      },
      {
        "name": "Kitty smack"
      }
    ]
  },
  {
    "name": "Hello Pussy",
    "items": [
            {
        "name": "World",
        "items": [
            {
            "name": "Hello Pussy world"
          }
        ]
      }
    ]
  }
]

it's nested JSON and my question is; where should the recursiveness be handled to render this?

I have 2 components List component that calls the data and posts data changes back to the server

Item component that renders a single item

Should I handle this at the list level or item level?

The item renders an input field you can update and this should be possible both at parent and child level

Upvotes: 4

Views: 8915

Answers (2)

Oleksandr T.
Oleksandr T.

Reputation: 77482

You can use Item to show child items(in React you can do it with children property), however main work will be in List, for example 

class Item extends React.Component {
  render() {
    return <li>
      { this.props.name }
      { this.props.children }
    </li>
  }
}

class List extends React.Component {
  constructor() {
    super();
  }

  list(data) {
    const children = (items) => {
      if (items) {
        return <ul>{ this.list(items) }</ul>
      }
    }

    return data.map((node, index) => {
      return <Item key={ node.id } name={ node.name }>
        { children(node.items) }
      </Item>
    });
  }

  render() {
    return <ul>
      { this.list(this.props.data) }
    </ul>
  }
}

Example

Upvotes: 7

seoyoochan
seoyoochan

Reputation: 842

I would do it in List component. If your List component is large, i would put them in another helper file to require it.

Upvotes: 0

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