Randomize variables in a string

randomize-variables-string.js

Conversation.prototype.randomizeMessage = function(message) {    
    const pattern = /\[(.*?)\]/g;
    const matches = message.match(pattern);
    if(matches) {
        matches.map((match) => {
            const items = match.substring(1, match.length-1).split('|');
            const randomItem = items[Math.floor(Math.random()*items.length)];
            message = message.replace(match, randomItem);
        }); 
    }
    return message;
}