TypeScript Tsgo Extra

lang.typescript-tsgo is the TypeScript and JavaScript stack that registers the experimental tsgo language server instead of ts_ls.

Enable this extra instead of lang.typescript, not alongside it. If lang.typescript is enabled in the extras state file, disable it with :BlakExtras disable lang.typescript.

Enable it

-- ~/.config/blak/lua/blak/user.lua
return {
  extras = {
    enabled = {
      "lang.typescript-tsgo",
    },
  },
}

Or toggle it interactively:

:BlakExtras enable lang.typescript-tsgo
:BlakExtras disable lang.typescript

What it adds

Surface	Contribution
Treesitter	javascript, typescript, tsx, jsdoc, json
Mason	prettier, prettierd
LSP	tsgo, eslint
Formatting	prettierd, falling back to prettier, for JS/TS/JSON filetypes
Linting	ESLint diagnostics come from the eslint language server
Apply hook	Removes ts_ls from the merged config before future setup

The extra registers the tsgo LSP name. It does not add a Mason package for the server itself, so use :LspInfo and :BlakDoctor to confirm your local setup can start it.

Configure tsgo

Put tsgo settings under lsp.servers.tsgo:

return {
  extras = {
    enabled = { "lang.typescript-tsgo" },
  },
  lsp = {
    servers = {
      tsgo = {
        settings = {
          typescript = {
            inlayHints = {
              includeInlayParameterNameHints = "all",
            },
          },
        },
      },
      eslint = {
        settings = {
          workingDirectory = { mode = "auto" },
        },
      },
    },
  },
}

Configure formatting and linting

This extra uses the same formatter defaults as lang.typescript. Override the filetype entries before the extra fills them:

return {
  extras = {
    enabled = { "lang.typescript-tsgo" },
  },
  format = {
    formatters_by_ft = {
      typescript = { "prettier" },
      typescriptreact = { "prettier" },
    },
  },
}

ESLint diagnostics come from the eslint language server, so no nvim-lint entry is registered. See Using eslint_d anyway if you want the standalone daemon as well.

Switching from ts_ls

When switching from lang.typescript, restart Neovim after disabling it. The extra removes ts_ls from future setup, but an LSP client that already attached in the current session will keep running until it is stopped or Neovim exits.

Install and verify

:BlakToolsInstall
:BlakTreesitterInstall
:BlakDoctor

Then open a TypeScript file and check :LspInfo for tsgo.