Function proceed

static/editor.md/lib/codemirror/mode/javascript/javascript.js:459–467

(type)

  }
  function commasep(what, end) {
    function proceed(type) {
      if (type == ",") {
        var lex = cx.state.lexical;
        if (lex.info == "call") lex.pos = (lex.pos || 0) + 1;
        return cont(what, proceed);
      }
      if (type == end) return cont();
      return cont(expect(end));
    }
    return function(type) {
      if (type == end) return cont();
      return pass(what, proceed);