title: ( Javascript ) is Hash Map or Set best represented by Const or Let variable?
body: <p>I wanted to ask the community when declaring a <code>new Map()</code> or <code>new Set()</code> in javascript, do you assign <code>const</code> or <code>let</code> keyword?</p>
  
  <pre><code>const map = new Map()
  vs
  let map = new Map()
  </code></pre>
  
  <p>I know that both <code>const</code> and <code>let</code> will work fine because it's allocating space in memory for the hash table but I wonder if there's any benefit to use either or.
  Does it even matter at the end of the day?</p>