正确的警告：“预计将在箭头函数array-callback-return中返回值”

Question

我要纠正警告

预期将在箭头函数array-callback-return中返回一个值。

我尝试添加return，但问题仍然存在。

listTaskWorkflow.forEach(element => {
    workflowDetail.department.departmentsList.find(department => {
        if (department.idDept === element.idDept) 
            element.idDept = department.departmentName;          
    })
});

Answer 1

find希望您告诉它回电给您的物品是否是您要寻找的物品。要在该代码中使用它，您需要在idDept中保留find检查，然后使用它返回的数组元素：

listTaskWorkflow.forEach(element => {
    const department = workflowDetail.department.departmentsList.find(department => department.idDept === element.idDept);
    if (department) {
        element.idDept = department.departmentName;          
    }
});

不过，另一种选择是使用for-of循环：

listTaskWorkflow.forEach(element => {
    for (const department of workflowDetail.department.departmentsList) {
        if (department.idDept === element.idDept) {
            element.idDept = department.departmentName;          
            break;
        }
    }
});

如果愿意，也可以使用for-of代替forEach：

for (const element of listTaskWorkflow) {
    for (const department of workflowDetail.department.departmentsList) {
        if (department.idDept === element.idDept) {
            element.idDept = department.departmentName;          
            break;
        }
    }
}