How can I `deno fmt` on file save?

Also asked on stack overflow

I was wondering if there was a builtin way of formatting on save, right now I hacked my way into this thanks to the RunOnSave extension but it feels hacky and I don’t know if it’s a bug from the vscode-deno extension or if I’m not configuring things right

My current .vscode/settings.json

{
  "deno.enable": true,
  "deno.lint": true,
  "deno.unstable": true,
  "emeraldwalk.runonsave": {
    "commands": [
      {
        "match": "\\.ts$",
        "cmd": "deno fmt ${file}"
      }
    ]
  }
}

[ninofiliu]

Ah yes didn’t know about this one! Indeed this appears to be the minimal vscode config to deno fmt on save

{
  "deno.enable": true,
  "editor.formatOnSave": true,
  "editor.defaultFormatter": "denoland.vscode-deno"
}

[KevinBatdorf]

Adding this to the project in .vscode/settings.json worked for me:

{
    "deno.enable": true,
    "deno.lint": true,
    "deno.unstable": false,
    "editor.formatOnSave": true,
    "[typescript]": { "editor.defaultFormatter": "denoland.vscode-deno" },
}