Html 传递到Handlebar模板的数据未显示在客户端

我像这样将viewData传递到把手模板

app.get('/employee/:value', (req, res) => {
    let viewData = {};
    dataService.getEmployeeByNum(req.params.value).then((data) => {
        if (data) {
            viewData.employee = data;
        } else {
            viewData.employee = null;
        }
    }).catch(() => {
        viewData.employee = null;
    }).then(dataService.getDepartments).then((data) => {
        viewData.departments = data;
        for (let i = 0; i < viewData.departments.length; i++) {
            if (viewData.departments[i].departmentId == viewData.employee.department) {
                viewData.departments[i].selected = true;
            }
        }
    }).catch((err) => {
        console.log(err);
        viewData.departments = [];
    }).then(() => {
        if (viewData.employee == null) {
            res.status(404).send("Employee not found");
        } else {
            res.render("employee", { layout: 'main', viewData: viewData })
        }
    })
});

但是从未在客户端（html）工作过，有什么问题吗？

试试这个

<h2>{{viewData.employee.1.firstName}} {{ viewData.employee.1.lastName}} - Employee: {{ viewData.employee.1.employeeNum}}</h2>

{{viewData.employee.1.firstName}{{viewData.employee.1.lastName}-employee:{{{viewData.employee.1.employeeNum}

视图数据作为数组传递给模板，下面是我获取值的步骤

<h2>{{viewData.employee.[0].firstName}} {{ viewData.employee.[0].lastName}} - Employee: {{ viewData.employee.[0].employeeNum}}</h2>

{{viewData.employee[0].firstName}{{{viewData.employee[0].lastName}}-employee:{{{viewData.employee[0].employeeNum}

---

谢谢

Employee是一个对象数组，而不是一个对象，它不会像您现在这样被访问。

<h2>{{viewData.employee.1.firstName}} {{ viewData.employee.1.lastName}} - Employee: {{ viewData.employee.1.employeeNum}}</h2>

<h2>{{viewData.employee.[0].firstName}} {{ viewData.employee.[0].lastName}} - Employee: {{ viewData.employee.[0].employeeNum}}</h2>