Instructions for using the console.error method in node.js_node.js

Method description:

This method is the same as console.log(), except that it outputs to the standard error stream.

Grammar:

Copy code The code is as follows:

console.error([data], [...])

Receive parameters:

console.log accepts several parameters. If there is only one parameter, the string form of this parameter will be output.

If there are multiple parameters, it will be output in a format similar to the C language printf() command.

If there are no parameters, just print a newline character

Example:

Copy code The code is as follows:

var count = 1234;
console.error('count: %d', count);

Source code:

Copy code The code is as follows:

Console.prototype.error = Console.prototype.warn;