react-use/docs/useKeyPress.md
streamich 61700675cd chore: 🤖 don't install only large dependencies
This change removes useCallbag hook, it also reverts back changes for
hooks that only have tiny dependencies or dependencies that could have
been part of the hook itself. Effectivly only KeyboardJS and Rebound are
large packages that only partially are used by react-use, hence require
user to install them separately.

BREAKING CHANGE: 🧨 useCallbag hook is removed, some hooks KeyboardJS and Rebound installed
separately
2019-03-25 13:19:37 +01:00

1.5 KiB

useKeyPress

React UI sensor hook that detects when the user is pressing a specific key on their keyboard.

Complex bindings like detecting when multiple keys are held down at the same time or requiring them to be held down in a specified order are also available via KeyboardJS key combos. Check its documentation for further details on how to make combo strings.

Requires keyboardjs:

npm add keyboardjs
# or
yarn add keyboardjs

Usage

import { useKeyPress } from "react-use";

const Demo = () => {
  const hasPressedQ = useKeyPress("q");
  const hasPressedW = useKeyPress("w");
  const hasPressedE = useKeyPress("e");
  const hasPressedR = useKeyPress("r");
  const hasPressedT = useKeyPress("t");
  const hasPressedY = useKeyPress("y");
  const hasPressedWord = useKeyPress("q + w + e + r + t + y", {
    useKeyboardJS: true
  });

  return (
    <div>
      Try pressing each one of these at a time: <code>Q W E R T Y</code>
      {!hasPressedWord && (
        <div>
          {hasPressedQ && "Q"}
          {hasPressedW && "W"}
          {hasPressedE && "E"}
          {hasPressedR && "R"}
          {hasPressedT && "T"}
          {hasPressedY && "Y"}
        </div>
      )}
      <div>And now press them all at once!</div>
      <div>{hasPressedWord && "Q + W + E + R + T + Y"}</div>
    </div>
  );
};

Reference

const hasPressedSingleKey = useKeyPress("<key>");
const hasPressedKeyCombo = useKeyPress("<key combo>", {
  useKeyboardJS: true
});