denops-demo.ts

// Import 'start' function from denops_std
import {start} from "https://deno.land/x/denops_std@v0.3/mod.ts";

// Call 'start' with async callback. The callback get 'vim' instance.
start(async (vim) => {
    vim.register({
        // async echo(_: unknown): Promise<unknown> {
        async echo(_: unknown): Promise<void> {
            // const test = await vim.g.get("denops_helloworld") as [boolean];
            const test = await vim.g.get("denops_helloworld");
            console.log("", typeof test);
            console.log("", typeof test[0] );
        },
    });

    // Use 'vim.execute()' to execute Vim script
    await vim.execute(`
      command! DenopsRustEcho echo denops#request("${vim.name}", "echo", [""])
      let g:denops_helloworld = [v:true]
  `);

    console.log("denops-demo.vim has loaded");
});