React Js Get Element by Key
React Js Get Element by Key | data-key:In Reactjs, obtaining an element by key or using the data-key attribute involves accessing a specific component in a list or collection. The key prop is used to uniquely identify elements within a list, enhancing performance and aiding React in managing updates efficiently.
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How can you retrieve a specific element in a Reactjs component by its unique key attribute?
In this React.js code, a list of elements is defined with keys and text. When a button is clicked, the handleClick function is invoked with a key as an argument. It then uses document.querySelector to find the DOM element with a data-key attribute matching the provided key. Once found, it sets the background color to red and logs the element's text content. This code demonstrates how to access and manipulate specific elements in the DOM using React by selecting elements based on their unique keys.
Output of React Js Get Element by Key | data-key
