How to code long JSON value strings as multiline?

Question

IMPORTANT: I am not asking about rendering strings as multiline.

I am talking about splitting a long string in a JSON into multiple lines in my source code when this string should logically be on a single line.

In short: I want source line breaking rules similar to HTML.

{
    "id": 550,
    "text": "this is long text "
            "very-very-very long text "
            "longer than you can imagine."
}

This text should be rendered as:

this is long text very-very-very long text longer than you can imagine.

The JSON is being referenced in JavaScript.

This is not a duplicate of Multiline strings in JSON because this question strongly refers to JavaScript and that question has no clear accepted answer.

Answer 1

You can use multiple lines string representation in JavaScript:

JSON.parse('{"a" : "a\
asd"}')

Tried in console. It works.

Answer 2

According to JSONLint.com, the following multiline JSON is valid. So in short, yes, you can hit enter and break it into different lines.

{
    "a": 10,
    "b": 12,
    "c": 19
}

EDIT: I think I misread your question. I don't think you're able to break between a string like below. That does not work.

{
    "a": "abcde
    fg",
    "b": 12,
    "c": 19
}

Answer 3

Use an array:

{
    "id": 550,
    "text": ["this is long text ",
            "very-very-very long text ",
            "longer than you can imagine."]
}

Assuming that this goes in this.messages, use in code

this.messages.text.join();

Answer 4

You can't do it, you need to write the value in one line, if you want write in the next row, you need to put \n in your code