我应该添加什么代码以使用 JavaScript 显示以下输出?

What code should i add to display the following output using JavaScript?

期望的输出:-

error : You have been disconnected!

warning : You have been idle for 15 minutes

// Code starts here

// Do not edit this function

function output(msg) {

   console.log(this.type, ":", msg)

}

 // You may edit below this line not including the .output functions.

var errorMsg = ;

var warningMsg = ;

// Do not edit below this line.

errorMsg.output('You have been disconnected!');

warningMsg.output('You have been idle for 15 minutes');

我不确定你在找这个:

//Desired Output:-

console.error("You have been disconnected!")

console.warn("You have been idle for 15 minutes");

console.log("Code starts here")

// Do not edit this function

function output(msg) {

console.log(this.type, ":", msg)
}

您可以使用函数作为 errorMsgwarningMsg 的构造函数,如下所示:

var Logger = function(type) {
  this.type = type
  this.output = output
}

var errorMsg = new Logger('warning');
var warningMsg = new Logger('error');

这是一个working plunker 如果您还有其他问题,请随时提问。