title: Julia convert String to Char, or convert Array{SubString{String},1} to char
body: <p>I want to convert an array of SubStrings into either Char or String values. </p>
  
  <p>I split a String to get an array of elements fine</p>
  
  <pre><code>mdSplit = split(mdSub,r"[ ]+")
  4-element Array{SubString{String},1}:
   "73"
   "G" 
   "T" 
   "" 
  </code></pre>
  
  <p>but now I want to iterate through this array, and if the value is a character I'm going convert that character to a Char, or make a copy of it as a char
   have tried both convert and parse</p>
  
  <pre><code>convert(Char,string(mdSplit[2]))
  </code></pre>