How to add a value in a json subarray with jQuery?

Question

How to add a value in a json subarray with jQuery ?

I has build this code but it dosen't work... The developer console tell me "Cannot call method 'push' of undefined"

function save(){
 var Arguments = [];
 $('.builder-page').each(function(){
 var title = $(this).find('input[name=title]').val();
 Arguments.pages.push({'title':title})
 });
 console.log(Arguments);
}

Thanks !

Answer 1

You need to declare it as on object which has an array as its pages property.

var Arguments = {pages: []};

Answer 2

Arguments is your array not pages. There's no indication in your code that pages is every created...