CODEWITHSUNDEEP
node.jsdiscorddiscord.js
KevinM1990112qwq
KevinM1990112qwq

Reputation: 735

NodeJS, DiscordJS command arguments split by {}

Quick question

If I am making a command like the following

!add {gamename}{gamedescription}{gamestatus}

How would I know that each argument is inside of the {}

I know the actual command is my first arg

 let args = message.content.substring(PREFIX.length).split(" ");
 switch(args[0]) {
    case 'status':

PREFIX being the '!'

Just not sure how I set argument 1 has the first string inside of the first {} and so on.

Upvotes: 0

Views: 1058

Answers (2)

slothiful
slothiful

Reputation: 5623

This regular expression will do the trick. Test it out below.

const regex = /{(.+?)}/g;
const string = '!add {game}{game description}{game status}';

const args = [];

let match;
while (match = regex.exec(string)) args.push(match[1]);

console.log(args);

Explanation:
To see how the regex works and what each character does, check it out here. About the while loop, it iterates through each match from the regex and pushes the string from the first capturing group into the arguments array.

Small, but worthy note:
. does not match line breaks, so arguments split up into multiple lines within a message will not be included. To prevent this, you could replace any new line character with a space before using the regex.

Upvotes: 4

Shuhei Kagawa
Shuhei Kagawa

Reputation: 4777

You can use a regular expression to capture substrings in a pattern.

const message = {
  content: '!add {gamename}{gamedescription}{gamestatus}'
};

const matches = message.content.match(/^!([a-zA-Z]+) {([a-zA-Z]+)}{([a-zA-Z]+)}{([a-zA-Z]+)}/);
if (matches) {
  console.log(matches[1]); // add
  console.log(matches[2]); // gamename
  console.log(matches[3]); // gamedescription
  console.log(matches[4]); // gamestatus
}

When the string matches the pattern, the matches object has substrings surrounded by () in matches[1], matches[2], matches[3] and matches[4]. matches[0] has the entire matched string (!add {gamename}{gamedescription}{gamestatus} in this case).

Upvotes: 1

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