Question

It is said here:

any quotes inside the JSON have to be
“escaped” with a backslash in front.
Otherwise, JavaScript gets confused
about which quotes we want for display
and which quotes are part of the
programming.

but in their code snippet I can’t see any escaping character is this tutorial buggy I’m confused ? :

var movielisttext = "{"movielist": ["Friday the 13th", "Friday the 13th Part 2", "Friday the 13th Part III", "Friday the 13th: The Final Chapter", "Friday the 13th: A New Beginning"]}";

My question is specifically if their article has an error or not because it amazes me that a tutorial for beginner can embed such error.

Answer 1

What you have is JavaScript, not JSON.

If you want JSON:

{
    "movielist": [
        "Friday the 13th",
        "Friday the 13th Part 2",
        "Friday the 13th Part III",
        "Friday the 13th: The Final Chapter",
        "Friday the 13th: A New Beginning"
    ]
}

If you want a JavaScript object

var movielisttext =   {
        "movielist": [
            "Friday the 13th",
            "Friday the 13th Part 2",
            "Friday the 13th Part III",
            "Friday the 13th: The Final Chapter",
            "Friday the 13th: A New Beginning"
        ]
    };

If you want a JavaScript string containing the JSON:

var movielisttext =  '{"movielist": ["Friday the 13th","Friday the 13th Part 2","Friday the 13th Part III","Friday the 13th: The Final Chapter","Friday the 13th: A New Beginning"]}';

or

var movielisttext = "{\"movielist\": [\"Friday the 13th\",\"Friday the 13th Part 2\",\"Friday the 13th Part III\",\"Friday the 13th: The Final Chapter\",\"Friday the 13th: A New Beginning\"]}";

Since the data itself doesn’t include any " characters, they don’t need to be escaped as far as the JSON is concerned.