title: send message to specific channel in discord.js
body: <p>I have a variable which has a value like <code>&lt;#637301291068031001&gt;</code>
  so in my case </p>
  
  <pre><code>welcomechID = &lt;#637301291068031001&gt;
  </code></pre>
  
  <p>then i try to send message to that id by </p>
  
  <pre><code>message.channel.get(`'${welcomechID}'`).send(`Welcome to the server, ${gdata.user.username}!`, attachment)
  </code></pre>
  
  <p>also tried both <code>message.channel</code> &amp; <code>message.channels</code></p>
  
  <pre><code>message.channel.get(parseInt(welcomechID)).send(`Welcome to the server, ${gdata.user.username}!`, attachment)
  </code></pre>
  
  <p>but all i get is Cannot read property 'get' of undefined</p>