执行一些代码,然后进入交互式节点 [英] execute some code and then go into interactive node

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问题描述

在node.js中进入交互模式之前,是否有办法执行某些代码(在文件中或从字符串中,并不重要)?

Is there a way to execute some code (in a file or from a string, doesn't really matter) before dropping into interactive mode in node.js?

例如,如果我创建一个脚本 __ preamble __。js ,其中包含:

For example, if I create a script __preamble__.js which contains:

console.log("preamble executed! poor guy!");

和用户输入节点__preamble __。js 他们得到这个输出:

and a user types node __preamble__.js they get this output:

preamble executed! poor guy!
> [interactive mode]


推荐答案

真的很老问题但......

Really old question but...

我相信我正在寻找类似的东西,并发现了这一点。
您可以打开REPL(在终端上键入 node ),然后加载文件。
像这样: .load ./script.js
按enter键,将执行文件内容。现在,脚本中创建的所有内容(对象,变量,函数)都可用。

I was looking for something similar, I believe, and found out this. You can open the REPL (typing node on your terminal) and then load a file. Like this: .load ./script.js. Press enter and the file content will be executed. Now everything created (object, variable, function) in your script will be available.

例如:

// script.js
var y = {
    name: 'obj',
    status: true
};

var x = setInterval(function () {
    console.log('As time goes by...');
}, 5000);

在REPL上:

//REPL
.load ./script.js

现在,您键入REPL并与生活代码进行交互。
您可以 console.log(y) clearInterval(x);

Now you type on the REPL and interact with the "living code". You can console.log(y) or clearInterval(x);

这将有点奇怪,因为随着时间的推移......每隔五秒(或左右)继续出现。
但它会起作用!

It will be a bit odd, cause "As time goes by..." keep showing up every five seconds (or so). But it will work!

这篇关于执行一些代码,然后进入交互式节点的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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