Keep VSCode from Tweaking Code

One thing that’s been bothering me lately is that VSCode sometimes reformats my code when I save a file. I love ESLint and Prettier, but sometimes I want more than one object per line, like with QMK files defining keyboard layouts.

What seems to be working lately is creating a .vscode/settings.json file in the root of the repo I’m working on and adding this to the settings.json:

{
    "[json]": {
        "editor.formatOnSave": false
    },
    "[jsonc]": {
        "editor.formatOnSave": false
    }
}

jsonc is for JSON with comments. It’s confusing though because sometimes you’ll be working on a .json file, but the [json] settings won’t apply to it. In that case, VSCode is probably treating the file as jsonc. VSCode autodetects some “special” json files (listed below) and treats them as jsonc. When VSCode is treating a .json fie as .jsonc, it will say “JSON with Comments” in the bottom right of VSCode in the “Language Mode Indicator” section.