{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "$*JUPYTER.register-comm('counter', -> :$in, :$out, :$data {\n",
    "      my atomicint $num = 0;\n",
    "      start react whenever Supply.interval(2) -> $i {\n",
    "         $out.send($num + $i);\n",
    "         done if $i > 4;\n",
    "      }\n",
    "      start while $in.receive -> $i {\n",
    "         $num ⚛= $i<num>;\n",
    "      }\n",
    "   }\n",
    ")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "application/javascript": [
       "var comm = Jupyter.notebook.kernel.comm_manager.new_comm('counter');\n",
       "var el = $('<div style=\"text-align:center;\">---</div>');\n",
       "this.element.append(el);\n",
       "var x = 10;\n",
       "comm.on_msg(function(msg) {\n",
       "   el.html(msg.content.data);\n",
       "   comm.send({'num': x});\n",
       "   x = x + 10;\n",
       "});"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "%% javascript\n",
    "var comm = Jupyter.notebook.kernel.comm_manager.new_comm('counter');\n",
    "var el = $('<div style=\"text-align:center;\">---</div>');\n",
    "this.element.append(el);\n",
    "var x = 10;\n",
    "comm.on_msg(function(msg) {\n",
    "   el.html(msg.content.data);\n",
    "   comm.send({'num': x});\n",
    "   x = x + 10;\n",
    "});"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Raku",
   "language": "raku",
   "name": "raku"
  },
  "language_info": {
   "file_extension": ".p6",
   "mimetype": "text/plain",
   "name": "raku",
   "version": "6.c"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2
}