How to handle arguments with spaces in Discord.js

Question

I'm trying to have my Discord bot handle commands with spaces in the argument. My args variable is defined in my index.js file:

const args = message.content.slice(prefix.length).split(/ +/);
const commandName = args.shift().toLowerCase();

My command file (perk.js) looks like this:

const Discord = require('discord.js');
const PerkData = require('./perk.json');


module.exports = {
    name: 'perk',
    args: true,
    execute(message, args) {
        for (let i = 0; i < PerkData.perks.length; i++) {
            if (PerkData.perks[i].id.toLowerCase() === args[0].toLowerCase()) {
                const perkEmbed = new Discord.MessageEmbed()

                    .setColor('#000000')
                    .setTitle('__**' + PerkData.perks[i].name + '**__ ')
                    .setURL(PerkData.perks[i].url)
                    .setThumbnail(PerkData.perks[i].gif)
                    .setDescription('A teachable unique [' + PerkData.perks[i].character + '](' + PerkData.perks[i].characterURL + ') Perk <:Perk:833657215743295499>. It can be unlocked for all other characters from Level ' + PerkData.perks[i].lvl + ' onwards:')
                    .addField('__Description__', PerkData.perks[i].description, false)

                message.channel.send(perkEmbed)
            }
        }
   }     
}

As of this moment, I have an "id" field in the JSON file that has hyphens - instead of spaces, which then the perk.js file reads from it and matches it up with the description. Example: .perk ace-in-the-hole

How do I make it so that I can use spaces in the argument instead of having to use hyphens?

Do I need to change how args is defined in index.js? Or can it be done within the command file, perk.js?

Long story short, I have: .perk ace-in-the-hole working. But I want to be able to do this: .perk ace in the hole

(Sorry if this was poorly written, I'm not an experienced coder...)

mrprgr · Accepted Answer · 2021-08-09 19:07:17Z

1

You can simply join the array of arguments with a space.

execute(message, args) {
    // Join the args array
    let perkArg = args.join(' ')
    
    for (let i = 0; i < PerkData.perks.length; i++) {
        if (PerkData.perks[i].id.toLowerCase() === perkArg.toLowerCase()) {
            // ...
        }
    }
}

Assuming all the perk IDs are unique and you only want to send one message, you could also search through the whole PerkData.perks array in a single line without a for loop to find a single item.

// Join the args array
let perkArg = args.join(' ')
let perk = PerkData.perks.find(perk => perk.id === perkArg.toLowerCase())
if(perk !== undefined) {
    // perk was found
} else {
    // perk was not found
}

answered Aug 9, 2021 at 19:07

mrprgr

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