Javascript 如何使用react在两个css类之间切换

我正在尝试在两个类黑暗模式和正常模式之间切换

这是香草js eventlistener

单击此按钮可在两种模式之间切换。如何使用react实现这一点

const[active，setActive]=useState（false）
const handleToggle=（）=>{
setActive（！active）
}
返回(
)

在这种情况下，您可以使用

useRef

：

const [active, setActive] = useState(false)
const modeRef = useRef();

const handleToggle = () => {
     modeRef.current.classList.toggle("dark")
}

return (
    <button ref={modeRef} className="mode-switch" title="Switch Theme" onClick={handleToggle}>
          <svg className="moon" fill="none" stroke="currentColor" strokeLinecap="round" strokeLinejoin="round" strokeWidth="2" width="24" height="24" viewBox="0 0 24 24">
            <defs></defs>
            <path d="M21 12.79A9 9 0 1111.21 3 7 7 0 0021 12.79z"></path>
          </svg>
    </button>
)

const[active，setActive]=useState（false）
const modeRef=useRef（）；
const handleToggle=（）=>{
modeRef.current.classList.toggle（“暗”）
}
返回(
)

     const [active, setActive] = useState(false)

     const handleToggle = () => {
      setActive(!active)
     }

 return (
    <button className="mode-switch" title="Switch Theme" onClick={handleToggle}>
          <svg className="moon" fill="none" stroke="currentColor" strokeLinecap="round" strokeLinejoin="round" strokeWidth="2" width="24" height="24" viewBox="0 0 24 24">
            <defs></defs>
            <path d="M21 12.79A9 9 0 1111.21 3 7 7 0 0021 12.79z"></path>
          </svg>
        </button>
)

const [active, setActive] = useState(false)
const modeRef = useRef();

const handleToggle = () => {
     modeRef.current.classList.toggle("dark")
}

return (
    <button ref={modeRef} className="mode-switch" title="Switch Theme" onClick={handleToggle}>
          <svg className="moon" fill="none" stroke="currentColor" strokeLinecap="round" strokeLinejoin="round" strokeWidth="2" width="24" height="24" viewBox="0 0 24 24">
            <defs></defs>
            <path d="M21 12.79A9 9 0 1111.21 3 7 7 0 0021 12.79z"></path>
          </svg>
    </button>
)