Formatting JSON removes blank lines

[ghost]

• VSCode Version: Code - Insiders 1.18.0-insider (8deed53, 2017-10-30T05:21:47.015Z)
• OS Version: Windows_NT x64 10.0.15063
• Extensions: none

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Steps to Reproduce:

1. Create a file foo.json containing:

{
    // part 1
    "x": 1,
    "y": 2,
    
    // part 2
    "a": 1,
    "b": 2
}

2. Format Document
3. The blank line is removed.

It would be nice if formatting JSON preserved blank lines (but still did things like inserting a space after a :).

[Spown]

would be not. formatting generally means removing extraneous whitespaces and adding missing ones where they are expected. a blank line falls into the first category. I wouldn't mind having a user setting for this, but 👎 for making it a default behavior.

[octref]

This is indeed the behavior of the built-in json formatter. You can install prettier https://marketplace.visualstudio.com/items?itemName=esbenp.prettier-vscode which preserves the whitespace in JSON.