找不到变量：提示

Question

#!/bin/sh

//Rock, Paper, Scissors

var myChoice = prompt("Rock, Paper, or Scissors?");

var computerChoice = Math.random();

if (computerChoice >= 0 && computerChoice <= .33) 
{
    computerChoice === "rock";
}
else if (computerChoice >=.34 && computerChoice <= .67) 
{
    computerChoice === "paper";
}
else 
{
    computerChoice === "scissors";
};

I understand my code to be rudimentary, but I am just beginning with Javacript. 我知道我的代码是基本的，但是我只是从Javacript开始。 I am trying to run this code through the terminal and continue to get the error message "can't find variable: prompt." 我正在尝试通过终端运行此代码，并继续获取错误消息“找不到变量：提示”。 I am sure there is a simple explanation out there, but I can't seem to find it. 我敢肯定那里有一个简单的解释，但是我似乎找不到。

Answer 1

prompt() is for browsers. prompt()用于浏览器。 You should use the functions found here instead. 您应该改用此处找到的功能。

Answer 2

You cannot use the prompt function in terminal. 您不能在终端中使用提示功能。 It only works in browsers, as it causes a box to popup that the user enters something in. Put it in an html file, and it will work: 它仅在浏览器中有效，因为它会导致弹出一个框，供用户输入内容。将其放在html文件中，它将起作用：

<!DOCTYPE html>
<html>
    <head>
        <script type="text/javascript">
        // your code goes here, minus that first comment.
        </script>
    </head>
</html>

找不到变量：提示

问题描述

2 个解决方案

解决方案1
0 2013-03-12 00:56:14

解决方案2
0 2013-03-12 00:56:37

找不到变量：提示

问题描述

2 个解决方案

解决方案1 0 2013-03-12 00:56:14

解决方案2 0 2013-03-12 00:56:37

解决方案1
0 2013-03-12 00:56:14

解决方案2
0 2013-03-12 00:56:37