Instructions for using the console.assert method in node.js

Method description:

This method is the same as assert. Ok (). If the expression evaluates to false, an AssertionError will be thrown along with a message.

Grammar:

console.assert(expression, [message])

Receiving parameters:

Expression                      expression

Message                            Error message

Example:

var a = 0;

console.assert(a == 1, 'error!');

Source:

Console.prototype.assert = function(expression) { 

  if (!expression) { 

    var arr = Array.prototype.slice.call(arguments, 1); 

    require('assert').ok(false, util.format.apply(this, arr)); 

  } 

};