Methods of capturing Console.log () output in JS _javascript techniques

This article illustrates the method of capturing Console.log () output in JS. Share to everyone for your reference. The specific analysis is as follows:

We know that Console.log () can export the information to the debugger for developers to view. But what if we want to get the output of Console.log () in JS? In fact, it is not difficult to first save the original Console.log, and then replace it with another implementation. The code is as follows:

var Lastlog;
Console.oldlog = Console.log;
Console.log = function (str) {
  console.oldlog (str);
  Lastlog = str;
} 
Console.log ("Hello, Neo");
document.write (Lastlog);

At this time Lastlog is "Hello, Neo".

I hope this article will help you with your JavaScript programming.