Accessing JavaScript object properties and functions giving undefined error

Question

I am new in node. I'm trying to access object properties and methods with .notation and it is giving undefined error for object properties and "TypeError: dice.roll is not a function " for object functions.

Here is code:

object file:

var dice = {
    size: 4,
    count:3,    
    roll:function(){
        var result = Math.ceil(this.size * Math.random());
        return result;
    } 
};
exports.diceObjectName = dice;

program file:

var dice = require("./dice");    
console.log(dice);    
console.log(dice.roll());

Try to change exports.diceObjectName = dice; into exports.dice = dice;. — 4esn0k
– 4esn0k, Commented Jan 15, 2018 at 13:25

peteb · Accepted Answer · 2018-01-15 13:28:56Z

1

You need to use module.exports = dice

var dice = {
    size: 4,
    count:3,    
    roll:function(){
        var result = Math.ceil(this.size * Math.random());
        return result;
    } 
};

module.exports = dice;

answered Jan 15, 2018 at 13:28

peteb

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Comments

yBrodsky · Accepted Answer · 2018-01-15 13:29:13Z

0

You are exporting your object inside diceObjectName. So in order to use it you have to do so:

var dice = require("./dice").diceObjectName;

Example

answered Jan 15, 2018 at 13:29

yBrodsky

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Comments

kaxi1993 · Accepted Answer · 2018-01-15 13:29:13Z

0

Instead of this code: exports.diceObjectName = dice; try this: module.exports = dice

or this:

var dice = require("./dice").diceObjectName;    
console.log(dice);    
console.log(dice.roll());

answered Jan 15, 2018 at 13:29

kaxi1993

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