Question

这是我的JS文件中的代码：

function arrayContains(array, value){
    return array.indexOf(value) > -1;
}
var possibleOptions = ["male", "female", "m", "f"];
var gender = prompt("What's your gender?","");
while(!arrayContains(possibleOptions, gender))
    gender = prompt("Invalid input. What's your gender?");
var name = prompt("What's your name?","");
var greeting = (gender == "male" || gender == "m") ? "Sup dude." : "Sup girl.";
alert("Hello, " + name + "! " + greeting);

我得到的错误：

Line: 5
char: 1
Object expected.

我无法弄清楚。

Answer 1

两个问题：

如评论中所述，w / cscript.exe脚本主机既不支持prompt（）也不支持alert（）
JScript数组没有.IndexOf（）方法

你必须自己动手：

function arrayContains(array, value){
    for (var i = 0, e = array.length; i < e; ++i) {
        if (array[i] === value) {
            return true;
        }
    }
    return false;
}

function prompt(p) {
    WScript.Stdout.Write(p + " > ");
    return WScript.StdIn.ReadLine();
}

function alert(s) {
    WScript.Echo(s);
}

var possibleOptions = ["male", "female", "m", "f"];
var gender = prompt("What's your gender?","");
while(!arrayContains(possibleOptions, gender))
    gender = prompt("Invalid input. What's your gender?");
var name = prompt("What's your name?","");
var greeting = (gender == "male" || gender == "m") ? "Sup dude." : "Sup girl.";
alert("Hello, " + name + "! " + greeting);

输出（控制台）：

cscript 26073853.js
What's your gender? > neuter
Invalid input. What's your gender? > male
What's your name? > tarzan
Hello, tarzan! Sup dude.

cscript 26073853.js
What's your gender? > female
What's your name? > jane
Hello, jane! Sup girl.

JS文件不起作用

1 个答案: