javascript 使用命令行中的节点“提示未定义”？
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"prompt not defined" using node from command line?
提问by user3753598
I'm trying to run a simple javascript program from the command line and am getting an unexpected error. prompt seems to be a simple javascript command; not sure why it's not defined.
我正在尝试从命令行运行一个简单的 javascript 程序，但出现意外错误。prompt 似乎是一个简单的 javascript 命令；不知道为什么它没有定义。
my test.js file:
我的 test.js 文件：
console.log("I will now ask you for your name.");
var name = prompt("Enter your name");
console.log("Hello ".concat(name, ". How are you"));
I'm running it like this:
我是这样运行的：
C:\directory\node test.js
I will now ask you for your name.
C:\directory\test.js:2
var name = prompt("Enter your name");
Reference Error: prompt is not defined
回答by soben360
you might wanna check this out as well but first run npm install prompt -- save
你可能也想看看这个，但首先运行 npm install prompt -- save
var prompt = require("prompt");
prompt.start();
console.log("I will now ask you for your name.");
prompt.get(["name"], function(err, res){
console.log("Hello ".concat(res.name, ". How are you"));
});
回答by azero0
I think you might be interested in this code :
我想你可能对这段代码感兴趣：
console.log("I will now ask you for your name.");
process.stdin.setEncoding('utf8');
var name;
process.stdin.on('readable', function() {
name = process.stdin.read();
if (name !== null) {
console.log("Hello ".concat(name, ". How are you"));
process.exit();
}
});
this is the node.js way of doing what you need to do. Hope this helps!
这是 node.js 做你需要做的事情的方式。希望这可以帮助！
