JSON key exists but returns false

Question

JSON key exists but returns false

First of all, all my code is done in node.js but this can all be applied to javascript too.

This is my code I use to check if the keys exist, the problem is that it always returns false. So I added in the console.log to shows what the values are:

if(!choice.name || !choice.realm || !choice.region || !choice.roll){
    console.log(choice);
    console.log(choice.name);
    console.log(choice.realm);
    console.log(choice.region);
    console.log(choice.roll);
    return false;
}

This is the output of that:

{"name":"Imacactus","realm":"Velen","region":"US","roll":"DPS"}
undefined
undefined
undefined
undefined

I'm guessing it has something to do with the quotes? but I've never heard of quotes messing it up. Is this a node.js problem? I've also tried .hasOwnProperty('realm') and it still failed.

This is most of the code with all the functions: http://pastebin.com/DUN9VdHr

javascript
json
node.js

Answer 1

You need to parse your json into a javascript object before you can reference its properties.

You can use JSON.parse

var choiceobj = JSON.parse(choice);
if(!choiceobj.name || !choiceobj.realm || !choiceobj.region || !choiceobj.roll){

    console.log(choiceobj);
    console.log(choiceobj.name);
    console.log(choicepbj.realm);
    console.log(choiceobj.region);
    console.log(choiceobj.roll);
    return false;

}

Answer 2

The problem is that the quotes is part of the key so to access it you have to do something like: console.log(choice['"name"']);