title: Discord.js, msg.content.toString().toLowerCase().startsWith() not working
body: <p>I'm coding a discord bot using discord.js. I'm trying to make an if statement:</p>
  <pre><code>    const Discord = require('discord.js');
      require('dotenv').config();
      const client = new Discord.Client();
      
      const config = require(&quot;./config.json&quot;);
      
      client.on('message', (msg) =&gt; {
          if (msg.content.toString().toLowerCase().startsWith(`${config.prefix}${config.customcommand}`)) {
              msg.channel.send(&quot;It's working&quot;);
          }
      }
  
  client.login(config.token)
  </code></pre>
  <p>Config.json:</p>
  <pre><code>    {
            &quot;token&quot;: &quot;xxx&quot;,
            &quot;prefix&quot;: &quot;C!&quot;,
            &quot;customcommand&quot;: &quot;Ship&quot;
      }
  </code></pre>
  <p>Now I'm aware that .toLowerCase() only works with strings, that's why I used toString() but it doesn't work. Nothing is happening when I type the command (C!Ship)</p>