我有以下useEffect
我想重構它，洗掉所有這些else if行
查看代碼
useEffect(() => {
if(country === "WW") {
setIsDisable(true);
} else if (country === "GB") {
setIsDisable(false);
} else if (country === "DE") {
setIsDisable(false);
} else if (country === "FR") {
setIsDisable(false);
} else if (country === "BR") {
setIsDisable(false);
} else if (country === "US") {
setIsDisable(false);
} else if (country === "IT") {
setIsDisable(false);
} else if (country === "US") {
setIsDisable(false);
} else if (country === "ES") {
setIsDisable(false);
} else if (country === "MX") {
setIsDisable(false);
}
}, [country]);
如您所見，國家：GB, DE, FR, BR, US, IT, US,ES和MX共享相同setIsDisable(false)
如果不重復相同的代碼，您將如何撰寫 1 行代碼else if？
uj5u.com熱心網友回復：
useEffect(() => {
setIsDisable(country === "WW");
}, [country]);
如果你想驗證
useEffect(() => {
if (country === "WW")
setIsDisable(true);
else if (["GB", "DE", "FR", "BR", "US", "IT", "ES", "MX"].includes(country))
setIsDisable(false);
}, [country]);
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