How to append array to existing json javascript?

Question

I want to create a json object like:

{
   name: "Julia"
   birthdate: "xxxx"
   movies: [{title: "movie1", rating: 5}, {title: "movie2", rating 3}}]
}

I want to do something like:

var myobj = [];
myobj.push({name: "Julia", birthdate: "xxxx"});

myobj.movies = [];
myobj.movies.push({title: "movie1", rating: 5});
myobj.movies.push({title: "movie2", rating: 3});

But I am unable to create that "movies" part. How do I accomplish this?

Ricardo Souza · Accepted Answer · 2012-07-12 15:48:02Z

8

You are getting this error because you are creating the object as an array. You have to create as an object to add properties:

var myobj = {name: "Julia", birthdate: "xxxx"};

myobj.movies = []; 
myobj.movies.push({title: "movie1", rating: 5}); 
myobj.movies.push({title: "movie2", rating: 3});

answered Jul 12, 2012 at 15:48

Ricardo Souza

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Daniel Aranda · Accepted Answer · 2012-07-12 15:48:46Z

1

You cannot mix datatypes(push works only on Arrays and attributes with objects), try something like this:

var myobj = {};
myobj.persons = [];
myobj.persons.push({name: "Julia", birthdate: "xxxx"});

myobj.movies = [];
myobj.movies.push({title: "movie1", rating: 5});
myobj.movies.push({title: "movie2", rating: 3});

answered Jul 12, 2012 at 15:48

Daniel Aranda

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Comments

codeguy · Accepted Answer · 2012-07-12 15:50:05Z

1

ye this works

var myobj = []; myobj.push({name: "Julia", birthdate: "xxxx"});

myobj.push({movies: []});

myobj.movies = [];
myobj.movies.push({title: "movie1", rating: 5});
myobj.movies.push({title: "movie2", rating: 3});

console.log(myobj);</code>

answered Jul 12, 2012 at 15:50

codeguy

7105 silver badges22 bronze badges

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