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useref not defined : error

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18BCA058 Vigneshwaran G answered on April 20, 2022 Popularity 9/10 Helpfulness 9/10

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answer useref not defined : error

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useref not defined : error

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import React, { useEffect, useRef } from "react";
import useWindowSize from "../hooks/useWindowSize";

export default function Player() {
  const canvasRef = useRef();
  const ctx = useRef();

  useEffect(() => {
    ctx.current = canvasRef.current.getContext("2d");
  }, []);
  ctx.current.fillStyle = "green";
  ctx.current.fillRect(20, 20, 150, 100);
  return (
    <React.Fragment
      <div>Hello</div>
      <canvas ref={canvasRef} width="500" height="500" />
    </React.Fragment>
  );
}

Popularity 9/10 Helpfulness 9/10 Language javascript

Source: stackoverflow.com

Tags: defined javascript use-ref

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18BCA058 Vigneshwaran G

Contributed on Apr 20 2022

18BCA058 Vigneshwaran G

0 Answers Avg Quality 2/10

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