Sharepoint：Javascript - 获取列表数据（包括 LOOKUP 列）

Question

I have a list with a LOOKUP column to another list. The lookup column is called "Employee" and I want to GET the values from the "Employment Type" field. However I keep on getting a request error. What is wrong with my statement below. Before, I was only looking for choice and $ columns.Everything worked fine until I inserted the Employee/Employment_Type&$expand=Employee part

    xhr.open('GET', _spPageContextInfo.webAbsoluteUrl + '/_api/web/lists/GetByTitle(\'' + listName + 
       '\')/items?  $Funding$Funding_Type$Vacant&Direct&Employee/Employment_Type$select=ID,Employee/Employment_Type&$expand=Employee&$top=1000'); 

also, is my Employment_Type = results[i].Employee/Employment_Type syntax correct below?

Note: I am only including a small part of the overall script

    for (var i = 0; i < results.length; i++){
        if (results[i].Direct == "DCSP" & results[i].Funding == "A-Base") {  
            dcsp_abaseSal += results[i].SalEnv3
            Employment_Type = results[i].Employee/Employment_Type
            TypeSal = results[i].SalEnv3
            dcsp_vacant_days += results[i].Vacant_Days
            dcsp_variance = dcsp_abase_cap - dcsp_abaseSal
        }
    }

Answer 1

rest api get look up column:

/_api/web/lists/getByTitle('test3')/items(1)?$select=Title,columnTitle/Title&$expand=columnTitle

You could add columns which you want to get after $select like columnTitle/sourceColumnTitle