问如何在whatsapp-web.js中发送whatsapp消息

EN

//Documentacao https://docs.wwebjs.dev/ 
const qrcode = require('qrcode-terminal');
const { Client, LocalAuth } = require('whatsapp-web.js');

//Read QRcode only one time
const client = new Client({
    authStrategy: new LocalAuth(),
    puppeteer: {
      handleSIGINT: false,
      args: [
          '--no-sandbox',
          '--disable-setuid-sandbox'
      ] }
  });
 

client.on('qr', qr => {
    qrcode.generate(qr, {small: true});
});

client.on('ready', () => {
    console.log('Client is ready!');

    // Number and Text.
    var number = "+55.11.9.8888.9999";
    var text = "Hi!";

    //Cleaning to only numbers
    number = number.replace(/\D/g, "");
    //console.log(number);

    //Remove Contry Code (Brazil 55) to make it more simple
    if (Array.from(number)[0] == "5" && Array.from(number)[1] == "5" && number.length >11) {
        number=number.substring(2);
        //console.log(number);
    } else {
        number=number;
        //console.log(number);
    }

    //Removing 0 from beggin (In Brazil old people put that)
    if (Array.from(number)[0] == "0") {
        number=number.substring(1);
        //console.log(number);
    } else {
        number=number;
        //console.log(number);
    }

    //Creating two numbers (In Brazil we change recentily to 11 digits, put one 9 more) 
    var number2="";
    if (number && /^\d{11,}$/.test(number.trim())) {
        //console.log('Tem 11');
        number2=number.slice(0,2)+number.slice(3);
        //console.log(number2);
    } else if (number && /^\d{10,}$/.test(number.trim())) {
        //console.log('Tem 10');
        number2=number.slice(0,2)+"9"+number.slice(2);
        //console.log(number2);
    } else {
        console.log('Não Tem 11 ou 10');
    }

    //Add Brazil code (55) and whatsapp ending
    number="55"+number+"@c.us";
    number2="55"+number2+"@c.us";
    //console.log(number);
    //console.log(number2);
    var number_array = [number,number2]
    number_array.forEach(element => console.log(element));

    // Sending message.
    function senf_numeber (number,text) {
        client.isRegisteredUser(number).then(function(isRegistered) {
            if(isRegistered) {
                console.log(number+' Registrado');
                client.sendMessage(number, (text+" "+number));
            }else{
                console.log(number+' Não Registrado');
            }
        })
    }  
    number_array.forEach(element => senf_numeber (element,text));
});


//teste if script is working. User send !ping e script return pong
client.on('message', msg => {
    if (msg.body == '!ping') {
        msg.reply('pong');
    }
});

client.initialize();

//Closing correcily using CTRL+C 
process.on('SIGINT', async () => {
    console.log('(SIGINT) Shutting down...');
    await client.destroy();
    console.log('client destroyed');
    process.exit(0);
});