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How to Render an Array of Objects in React?

Published on 2024-11-25
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How to Render an Array of Objects in React?

Rendering an Array of Objects in React

The query demonstrates an attempt to render a list of objects in React. However, it is missing the necessary return statement within the render() method. Let's address this and provide a comprehensive solution:

Solution:

To render an array of objects in React, there are two approaches:

Method 1: Store the output to a variable

render() {
    const data =[{"name":"test1"},{"name":"test2"}];
    const listItems = data.map((d) => 
  • {d.name}
  • ); return (
    {listItems }
    ); }

    Method 2: Directly write the map function in the return

    render() {
        const data =[{"name":"test1"},{"name":"test2"}];
        return (
          
    {data.map(function(d, idx){ return (
  • {d.name}
  • ) })}
    ); }

    In both methods, the data is mapped to a list of elements. Each element is assigned a unique key prop, as required by React. This key ensures efficient re-rendering and maintains the identity of each list item.

    These solutions provide a reliable and flexible way to render arrays of objects in React.

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