module.exports vs exports? code example

Example 1: module.exports vs exports

//module.exports used for object 
var log = {
            info: function (info) { 
                console.log('Info: ' + info);
            },
            warning:function (warning) { 
                console.log('Warning: ' + warning);
            },
            error:function (error) { 
                console.log('Error: ' + error);
            }
    };

module.exports = log

//exports used for function 

exports.SimpleMessage = 'Hello world';

Example 2: module.exports equivalent es6

exports["default"] = A; module.exports = exports["default"];