Sometimes, we want to set the height of a text area dynamically with JavaScript and React.
In this article, we’ll look at how to set the height of a text area dynamically with JavaScript and React.
How to set the height of a text area dynamically with JavaScript and React?
To set the height of a text area dynamically with JavaScript and React, we can set the height of the text area when we type into it.
For instance, we write:
import React from "react";
export default function App() {
const handleKeyDown = (e) => {
e.target.style.height = "inherit";
e.target.style.height = `${e.target.scrollHeight}px`;
};
return <textarea onKeyDown={handleKeyDown} />;
}
to set the onKeyDown prop to the handleKeyDown function.
In it, we set the height of the text area to the e.target.scrollHeight, which is the height of the scrollable area.
As a result, the height of the text area should change to show all the text as we type into it.
Conclusion
To set the height of a text area dynamically with JavaScript and React, we can set the height of the text area when we type into it.
