discord.js - Imagine an app•3y ago

Check if a custom emoji is a valid emoji my bot can use

Hello, I'm trying to get my bot to check it the emoji code a user enters is a valid emoji that the bot can use in a button or not but I have no idea how to do that. Does someone have a solution?

11 Replies

Unknown User•3y ago

Message Not Public

d.js docs•3y ago

Tag suggestion for @ncls.: • For unicode emojis (twemoji): learn more • Custom emojis: /<?(a)?:?(\w{2,32}):(\d{17,19})>?/ learn more

Idris•3y ago

check if it matches this regex

ncls.OP•3y ago

I think I implemented it wrong because I have no idea of RegEx. Could you take a look at this please?

function checkDiscordEmoji(emoji) {
  const regex = new RegExp("<?(a)?:?(\w{2,32}):(\d{17,19})>?")
  return regex.test(emoji)
}

function checkDiscordEmoji(emoji) {
  const regex = new RegExp("<?(a)?:?(\w{2,32}):(\d{17,19})>?")
  return regex.test(emoji)
}

Idris•3y ago

I don't know if your code is wrong or not but I'd do

function checkDiscordEmoji(emoji) {
  const id = emoji.match(/<?(a)?:?(\w{2,32}):(\d{17,19})>?/)[3];
  if (id) return id
  return "The provided emoji is invalid."
}

function checkDiscordEmoji(emoji) {
  const id = emoji.match(/<?(a)?:?(\w{2,32}):(\d{17,19})>?/)[3];
  if (id) return id
  return "The provided emoji is invalid."
}

ncls.OP•3y ago

It works but it crashes when I put in a normal emoji or just text Says this:

const id = emoji.match(/<?(a)?:?(\w{2,32}):(\d{17,19})>?/)[3]
                                                           ^
TypeError: Cannot read properties of null (reading '3')

const id = emoji.match(/<?(a)?:?(\w{2,32}):(\d{17,19})>?/)[3]
                                                           ^
TypeError: Cannot read properties of null (reading '3')

Idris•3y ago

this is what I do for my bot

ncls.OP•3y ago

That works way better but still crashes when you enter <noemoji It's fixable with a try catch but now I'm facing the issue that it thinks that "<😂" is a valid emoji

Idris•3y ago

that regex is only for custom emojis not defaults one

ncls.OP•3y ago

Oh, I mixed things up. My function for checking normal emojis is just wrong because it just checks if a normal emoji is included. That's what passes the input. Not the custom emoji function. Thanks a lot for your help!

Idris•3y ago

no prob

Gaming

Programming

Check if a custom emoji is a valid emoji my bot can use