title: Nim: advantage of using array over seq?
body: <p>From the docs, I know that Nim arrays have a fixed length determined at compile time, whereas seqs have a variable length.</p>
  
  <p>I notice that seqs have more builtin tools. For example, in the <code>sequtils</code> module, <code>map</code> can take an array but will return a seq anyway, and <code>all</code> or <code>any</code> do not work with arrays. And I don't see an easy way to convert a fixed-size seq into an array.</p>
  
  <p>So my question is: what are the benefits of using arrays? Do they provide faster access?</p>