# `useKeyboardJs` React UI sensor hook that detects complex key combos like detecting when multiple keys are held down at the same time or requiring them to be held down in a specified order. Via [KeyboardJS key combos](https://github.com/RobertWHurst/KeyboardJS). Check its documentation for further details on how to make combo strings. ## Usage ```jsx import useKeyboardJs from 'react-use/lib/useKeyboardJs'; const Demo = () => { const [isPressed] = useKeyboardJs('a + b'); return (