title: JS function declaration with the limit of 1 char per line?
body: <p>Im currently doing some JS challenge with these rules:<br>
  You need to write a function f that returns the string Hello, world!.<br>
  Requirement: Every line must have at most 1 character, and total number of lines must be less than 145<br>
  I've done that, but only thing that i struggle with is function declaration.
  Shortest i was come up with is:</p>
  
  <pre><code>f
  =
  _=&gt;
  </code></pre>
  
  <p>There must be some 'hack' way to declare a function in js with limit of 1 char per line.</p>