javascript - React - How do I give each child component a unique ref? -


i have parent component renders 1 of several child components:

class parent extends react.component {   ...   render() {     const activechild = this.state.activechild; // 0, 1, 2, etc.     return (       <div>         {this.props.children[activechild]}       </div>     );   } }

each of these child components needs have ref own unique dom node. in case, need pass each child's node third-party library draw on (for example: visualization, canvas, or map).

the problem that, when child components rendered same 'point' in react tree, @ different times, end sharing same ref. (i think)

here's jsfiddle demonstrating problem, using leaflet.js.

when of children rendered separately, each own dom node draw map onto. when shown one-at-a-time, first 1 able draw onto ref'd dom node.

can tell react use (and display) separate nodes each individual child's ref, if children being mounted @ same point?

if not, there better approach problem?


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