Question

我正在尝试制作一个程序，显示一个人累积的旅行里程数。这是我创建的功能：

function showmiles(event:MouseEvent):void {

var hintEmployee1:int;
var hintEmployee2:int;

hintEmployee1 = (employee.indexOf(txtFirstname.text));
hintEmployee2 = (employee.indexOf(txtLastname.text));

if ((hintEmployee1 != -1) && (hintEmployee2 != -1))
{
trace("yes")
}
else
{
trace ("no")
}
}

如果名为“employee”的数组每个对象只有一个单词，那么这应该有效。但是，我在数组中定义了这样的员工：

employee.push({firstname: Jamie, lastname: Hughes, milesweek1: 400, milesweek2: 670})

如果一个人的第一个名字（输入文本框txtFirstname）和姓氏（输入文本框txtLastname）在一个数组对象内部，没有程序扫描它们，我如何检测我的程序作为一个单独的对象？

Answer 1

您需要循环使用array并逐个测试每个object，直到找到匹配项为止：

function showmiles(event:MouseEvent):void {

    if (isEmployee(txtFirstname.text, txtLastname.text))
    {
        trace("yes")
    }
    else
    {
        trace ("no")
    }
}

function isEmployee(firstName:String, lastName:String):Boolean
{
    // I've pluralised the name of the array which is better I think
    for (var i:int = 0; i < employees.length; i ++) 
    {
        var employee:Object = employees[i]; 
        if (employee.firstname == firstName && employee.lastName == lastName)
        {
            return true;
        }
    }

    // Employee isn't in the array
    return false;
}

如果您加入underscore library，则可以使用findWhere函数更简洁地执行此操作：

// Return the first object where firstname and lastname properties match the values in the text fields
_.findWhere(employees, { firstname: txtFirstname.text, lastname: txtLastname.text });

我假设它只是一个拼写错误，但对象中的名称值是字符串，应该引用：

employee.push({firstname: "Jamie", lastname: "Hughes", milesweek1: 400, milesweek2: 670})

AS3：在单个数组对象中搜索包含的单词？

1 个答案: