title: What does it mean that JavaScript is "dynamic"?
body: <p>I've read from different sources (e.g. wiki, articles, etc.) what dynamic in a programming sense means. <a href="https://en.wikipedia.org/wiki/Dynamic_programming_language" rel="noreferrer">Wikipedia</a> talks about how dynamic programming languages execute certain programming behaviors at runtime (as opposed to compile time for static languages), but their explanation is vague and talks about how these behaviors vary in degree of difficulty, complexity, and performance costs for all programming languages.</p>
  
  <p>So with respect to JavaScript specifically, what does it mean that it's dynamic?</p>
  
  <p>I may be completely wrong on this, but also understand JavaScript to be a dynamically typed language since you don't have state the type before instantiating a variable/function(e.g. var, function jsFunction()) as opposed to a statically typed language like Java where you define a type before instantiating a variable/function(e.g. int var, public int function()).</p>
  
  <p>Does this have to do with any of this?</p>