anchor.diff:          h2 Generators
           pre
             code.language-javascript.
  -            let it = fib();
               for (let n of fib) {
                 if (n > 1000) {
                   break;
  
positive.code:       section
          h1 Generators
          h3.bullet Generators are a special kind of iterator
            ul
              li
                h3 Generators do not follow run-to-completion
              li
                h3 They can be paused using #[span.token.keyword yield] in the Generator
              li
                h3 And resumed on the outside by calling #[span.token.keyword next] on the Generator
  
        section
          h1 Generators
  
negative.code:         h1 Stage 0
          p const classes, Relationships, String.prototype.at, Structured Clone, weak references, Set/Map.prototype.toJSON, do expressions, Function Bind syntax, private object state
  
        section(data-bespoke-hash="end")
          h1 Thanks
          h3 Daniel Budden
          h3 Github: #[a(href="https://github.com/d3pis3d") d3spis3d]
          h3 Twitter: #[a(href="https://twitter.com/danlbudden") @danlbudden]
          h4 #[a(href="http://d3spis3d.github.io/es2015-deep-dive-pres") http://d3spis3d.github.io/es2015-deep-dive-pres]
  
      script(src='build/build.js')
  