This regexp is matching strings after /ab. Also, i would like to match empty strings after /ab. How can i do that?. Thanks in advance.
const TelegramBot = require('node-telegram-bot-api');
const token = process.env.TOKEN;
const bot = new TelegramBot(token, { polling: true });
bot.onText(/\/ab (.+)/, (msg, match) => {
const chatId = msg.chat.id
const prompt = match[1]
bot.sendMessage(chatId, prompt)
})Use a lookbehind: /^(?![\s\S])|(?<=\/ab).*/g
A lookbehind (?<=) will match anything in front of it without being included in the actual match. As for return an empty string, you'll need to explicitly return a "" if there's no match. You can change this line maybe: Added an alternate ^(?!\[\s\S\])|
const rgx = new RegExp(/^(?![\s\S])|(?<=\/ab).*/, 'g');
const str = `/ab 1234 hdsso
/abksdfsioiowe
/ab
khbigigi7
s366s7d /ab`;
let matches = [...str.matchAll(rgx)].flat();
console.log(matches);