在我的react钩子中,我定义了两个用于设置变量的函数: setProjectMiddleCode
和setProjectToolCode
。
我希望在我的react挂钩中调用这两种方法以避免重复代码。
我想这样做:
//variable define
let data;
let index = res.data.indexOf(res.code.value);
//call dynamic
if(some state ==='A'){
data= "setProjectMiddleCode"
}else{
data = "setProjectToolCode"
}
if (index < 0) {
this[data](res.data.concat(res.code.value));
} else {
this[data](res.data.filter((_, i) => i !== index));
}
我当前的代码:
const [projectMiddleCode, setProjectMiddleCode] = useState([]);
const [projectToolCode, setProjectToolCode] = useState([]);
const ProjectWrite = memo(({}) => {
let component;
const dispatch = useDispatch();
const [projectMiddleCode, setProjectMiddleCode] = useState([]);
const [projectToolCode, setProjectToolCode] = useState([]);
const callbackFromChild = useCallback(
res => () => {
let index = res.data.indexOf(res.code.value);
if (res.codeName === 'PROJECT_MIDDLE_CODE') {
if (index < 0) {
setProjectMiddleCode(res.data.concat(res.code.value));
} else {
setProjectMiddleCode(res.data.filter((_, i) => i !== index));
}
} else if (res.codeName === 'TOOL_LIST') {
if (index < 0) {
setProjectToolCode(res.data.concat(res.code.value));
} else {
setProjectToolCode(res.data.filter((_, i) => i !== index));
}
}
},
[]
);
做到这一点的一种方法是为您的功能创建res.codeName
的地图:
const { codeName, code, data } = res;
const index = data.indexOf(code.value);
const funcMap = {
PROJECT_MIDDLE_CODE: setProjectMiddleCode,
TOOL_LIST: setProjectToolCode
}
const newData = index < 0 ? data.concat(code.value) : data.filter((_, i) => i !== index);
const func = funcMap[codeName];
func(newData);