JAVASCRIPT

how to export module in node js

module.exports ={
 //functions
}

module export in node js

var users = [
    { userName: "BarneyRubble", age: 38   },
    { userName: "WilmaFlintstone", age: 37 },
    { userName: "FredFlintstone", age: 36 }
];

module.exports.getAllUsers = function(){
    return users;
}

model export in node js

module.exports.yourFunctionName = function()
{

}

exports in node js

require function returns exports of the require module.
module.exports is the returned object.
1)use module.exports to export single varibale e.g one class or one function 
e.g module.exports= Calculator.
2)use exports to export multiple named variables 
export.add = (a,b)=> a+b;
export.multiple=(a,b)=> a*b;