What is the difference between a JS object literal and a JSON string?

Question

I have confusion about what exactly people mean by Object Literals, JSON, JavaScript Objects, to me they seem similar:

{foo: \'bar\', bar : \'baz\'}

Answer 1

The variable jsonString contains a JSON string:

var jsonString = '{"foo": "bar", "bar" : "baz"}'

The variable javascriptObject contains a javascript object, initialized using an object literal:

var javascriptObject =  {foo: 'bar', bar : 'baz'}

You can convert a json string to a javascript object with JSON.parse, and back again with JSON.stringify.