ggicci / goplay

:hamster: Embed Go Playground on your Website

AD

🔥 We're hiring! Message me for a referral :)

• Senior Software Development Engineer, AWS IAM

PROJECTS

• ⭐ httpin: Go - HTTP Request from/to Struct, i.e. Bi-directional Data Binding between Go Struct and http.Request (documentation)
• 🦉 owl: Go - a Go Struct Tag Framework and Algorithm Driver
• caddy-jwt: Go -Caddy Module for JWT Authentication (documentation)
• distlock: Go - Simple distributed locks using Redis, MySQL, PostgreSQL, etc.
• password: Go - Password Hashing & Verification
• goenv: Go - Populate go struct instance with OS environment variables.
• goplay: TypeScript - Embed Go Playground on your Website (demo)
• v2raym: Bash - Dead simple v2ray client for macOS (in terminal)
• droplet.sh: Bash - Import shell scripts like Go
• python-fossil-delta: Python wrapper of the C implementation of Fossil Delta Encoding Algorithm
• jsonla: C++ - Parse and manipulate JSON data structure

goplay's Issues

Respect event delay in output

Delay property is used to simulate timeouts in console output. It's necessary because the Go playground mocks system time and disables timeout functions like time.Sleep and etc.

For instance, let's take the snippet below:

fmt.Println("fizz")
time.Sleep(2 * time.Second)
fmt.Println("buzz")

If you don't simulate timeout between events, both lines will be printed simultaneously.

To fix this issue, it's necessary to add a simple setTimeout between outputs:

const sleep = n => new Promise((res) => setTimeout(res, n);

 for (const event of js.Events || []) {
      // not sure it this is delay in seconds or nanoseconds
      // but let's assume that .Delay is in seconds for demo purposes.
     if (event.Delay > 0) await sleep(event.Delay);
      switch (event.Kind) {
        case 'stdout':
          stdout.innerText += event.Message
          break
        case 'stderr':
          stderr.innerText += event.Message
          break
        case 'system':
          system.innerText += event.Message
          break
      }
    }