从console.log获取输入

Question

How can I get the input from the console.log while using pure javascript?

For example I wrote "hello world" in the console - I would like to add an event listener which will check this input.

How should I do it?

Answer 1

Rather than using an event listener, proxy the console itself:

interceptConsoleLog(fn) {
  const realLog = window.console.log;
  window.console.log = (function proxyLog() {
    // Do whatever you want the code to do, here.
    fn(...arguments); 

    // And then you fall through to the original log operation.
    realLog(...arguments)
  }).bind(console);
}

And then call it with your own handling function:

function doWhatever() {
  // ...
}

interceptConsoleLog(doWhatever);