[英]Retrieve value from an Object which is a key in a hashmap
I have a DWR call which returns a MAP<Employee, Double>. 我有一个DWR调用,该调用返回MAP <Employee,Double>。 Employee is a class having attributes, employeeId and employeeName . Employee是一个具有employeeId和employeeName属性的类。
In my javascript, I m doing something like this. 在我的JavaScript中,我正在做这样的事情。
for (var k in employees) {
if (employees.hasOwnProperty(k)) {
alert("EmployeeId : " + k.employeeId);
}
}
It shows me undefined
. 它告诉我undefined
。
key? 键? the k
is the key. k
是关键。 maybe you meant access the value of the key: 也许您的意思是访问密钥的值:
var employee = employees[k]
if employees[k]
contains an object with the employeeId
, then: 如果employees[k]
包含一个具有employeeId
的对象,则:
for (var k in employees) {
if (employees.hasOwnProperty(k)) {
alert("EmployeeId : " + employees[k].employeeId);
}
}
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