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onChange

Description​

Fires on change of the value in textarea

Usage​

onChange?: (ev: { value: string; input?: boolean }) => void;

Parameters​

  • value - (required) the value of the input
  • input - (optional) - (optional) true, if a value is being typed by a user (check details below)

Example​

Tracking user input:

import { useCallback } from "react";
import { Textarea } from "@svar-ui/react-textarea";

const Example = () => {
  const onChange = useCallback(({ value, input }: { value: string; input?: boolean }) => {
    console.log("Textarea value:", value, "Changed by user:", !!input);
  }, []);

  return <Textarea onChange={onChange} />;
};

Details​

The handler function receives the new value of the control typed in the input. The received object may also contain input:true, depending on the fired HTML input events:

  • if the HTML input element's input event is caught (a number is being typed), the control's onChange will have input:true
  • if the HTML input element's change event is caught (a user has applied changes), the control's onChange won't have the input property

Related article: Catching the change of the value