1

Well, I have a little problem. I am developing a bot, and when the user executes a daily command, he earns "money" that is added to the database. But when he adds, he ends up looking like this:

Expectation: 610 + 491 = 1101

Reality: 610 + 491 = 610491

My code:

database.ref(`Servidores/${message.guild.id}/Users/${message.author.id}/Economia`).once('value').then(async function(db){

        let dbref = database.ref(`Servidores/${message.guild.id}/Users/${message.author.id}/Economia`);
//

            const embed1 = new Discord.MessageEmbed()
            .setColor(process.env.COLOR)
            .setAuthor(` - Recompensa diária`)
            .setDescription(`Você coletou sua recompensa diária!
            
             Dinheiro Coletado: **\`R$${amount},00\`**`)
            .setTimestamp()

            message.channel.send(embed1)

            dbref.update({
                money: db.val().money+amount,
                daily: Date.now()
            })

        }
    })
Frank van Puffelen
  • 565,676
  • 79
  • 828
  • 807
Vintally Official
  • 75
  • 5
  • Does this answer your question? [Adding two numbers concatenates them instead of calculating the sum](https://stackoverflow.com/questions/14496531/adding-two-numbers-concatenates-them-instead-of-calculating-the-sum) – Zsolt Meszaros Jun 01 '21 at 15:09

2 Answers2

1

When summing two variables in JavaScript, two behavior can be expected :

  • summing numbers : the result is the sum of numbers
  • summing string : the result is the concatenation of the strings.

Here one of your value, presumably db.val().money, is a string, therefore the result is the concatenation of the db.val().money and amount.

If you want the real sum, make sure to convert your variables to number with the Number() constructor.

Godev
  • 316
  • 1
  • 4
  • 12
0

because you adding strings, please convert is to integers first

Muddi00seven
  • 26