View: frontend/src/hooks/useMobile.ts — full-stack-fastapi-template

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import * as React from "react"

const MOBILE_BREAKPOINT = 768

export function useIsMobile() {
  const [isMobile, setIsMobile] = React.useState<boolean | undefined>(undefined)

  React.useEffect(() => {
    const mql = window.matchMedia(`(max-width: ${MOBILE_BREAKPOINT - 1}px)`)
    const onChange = () => {
      setIsMobile(window.innerWidth < MOBILE_BREAKPOINT)
    }
    mql.addEventListener("change", onChange)
    setIsMobile(window.innerWidth < MOBILE_BREAKPOINT)
    return () => mql.removeEventListener("change", onChange)
  }, [])

  return !!isMobile
}


1	import * as React from "react"
2
3	const MOBILE_BREAKPOINT = 768
4
5	export function useIsMobile() {
6	const [isMobile, setIsMobile] = React.useState<boolean \| undefined>(undefined)
7
8	React.useEffect(() => {
9	const mql = window.matchMedia(`(max-width: ${MOBILE_BREAKPOINT - 1}px)`)
10	const onChange = () => {
11	setIsMobile(window.innerWidth < MOBILE_BREAKPOINT)
12	}
13	mql.addEventListener("change", onChange)
14	setIsMobile(window.innerWidth < MOBILE_BREAKPOINT)
15	return () => mql.removeEventListener("change", onChange)
16	}, [])
17
18	return !!isMobile
19	}
20