React Js Auto Resize Textarea
React Js Auto Resize Textarea:React.js Auto Resize Textarea is a component that dynamically adjusts the height of a textarea based on its content. It uses JavaScript to calculate the height required to display all the text without scrolling. By listening to input changes, the component automatically adjusts the height, allowing users to enter and view multiline text comfortably.
This feature improves user experience by eliminating the need for manual resizing. Implementing this functionality in React.js involves attaching event listeners to the textarea and updating its style property, specifically the height, based on the content's height. This ensures that the textarea expands or shrinks accordingly as the user types or removes text.
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How can I implement an auto-resize feature for a textarea in React.js?
The provided code demonstrates an auto-resize textarea in a React JS application.
Inside the function component App(), the state variable value is declared using the useState hook to store the current value of the textarea. The handleChange function is called whenever the textarea value changes.
Within the handleChange function, the value of the textarea is updated using setValue(event.target.value). Then, the height of the textarea is reset to its default value ('auto') to recalculate the actual scroll height. Finally, the height is set to the calculated scroll height (event.target.scrollHeight) using inline CSS.
The rendered component includes a textarea with the specified minimum height ('50px') and the onChange event listener that triggers the handleChange function.
Output of React Js Auto Resize Textarea
