如何在 JavaScript 中从 Chrome 的控制台读取 [英] How to read from Chrome's console in JavaScript

问题描述

我想在我的应用程序中放置一个按钮，如果您按下它，它将获取写入控制台的所有内容并将其通过电子邮件发送给我(用于报告错误).我知道我可以保留一个变量，每次执行 console.log 时也会将消息附加到该变量，但我试图将应用程序的内存消耗保持在较低水平，因此仅从控制台.

I would like to put a button in my app, if you press it it will get the contents of everything that was written to the console and email it to me (for reporting bugs). I know I can keep a variable around and every time I do a console.log also append the message to that variable but I am trying to keep the memory consumption of the app low so it would be much more efficient just to grab it from the console.

有没有办法从 javascript 中检索控制台消息?

Is there a way to retrieve the console messages from javascript?

推荐答案

你不能.无法从 JavaScript 读取控制台中的内容.

You can't. What's in the console can't be read from JavaScript.

您可以做的是挂钩 console.log 功能，以便您在记录时进行存储:

What you can do is hook the console.log function so that you store when it logs :

console.stdlog = console.log.bind(console);
console.logs = [];
console.log = function(){
    console.logs.push(Array.from(arguments));
    console.stdlog.apply(console, arguments);
}

console.logs 包含所有记录的内容.您可以随时通过执行 console.logs.length = 0; 来清理它.

console.logs contains all what was logged. You can clean it at any time by doing console.logs.length = 0;.

您仍然可以通过调用 console.stdlog 来执行标准的、非存储的日志.

You can still do a standard, non storing, log by calling console.stdlog.

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