{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Using external javascript libraries"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "If you need to use some 3rd party lib you can use folowing technique."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Define map of js paths. You can use for example path of libraries provided [here](https://cdnjs.com/libraries). Remove `.js` from path it will be added automaticaly."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "%%javascript\n",
    "require.config({\n",
    "    paths: {\n",
    "        'big': '//cdnjs.cloudflare.com/ajax/libs/big.js/5.2.2/big' \n",
    "    }\n",
    "});"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "%%javascript\n",
    "require(['big'], function(Big) {\n",
    "    window.Big = Big;\n",
    "});"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "%%javascript\n",
    "var a = 0.3;\n",
    "var b = 0.1;\n",
    "var c = new Big(a);\n",
    "\n",
    "beakerx.displayHTML(this, `\n",
    "using floats: ${a-b}<br>\n",
    "using big.js: ${c.minus(b)}\n",
    "`);"
   ]
  }
 ],
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