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Question

I’m encountering a JavaScript error, “require is not defined”, when trying to run Jupyter Notebook on a MacBook Pro. This issue occurs in both Edge and Chrome browsers. Below is the JavaScript snippet causing the issue:I’ve attempted basic troubleshooting such as clearing the browser cache and ensuring my browser is up-to-date, but the error persists. How can I resolve this issue to properly use JavaScript functionalities within my Jupyter Notebook?

# Prepping the json file
holiday_json = {
"name": "flare",
"children": [
{
"name": "Additional",
"children":[
{"name": "Batalla de Pichincha",       "size": 5.0},
{"name": "Cantonizacion de Cayambe",   "size": 6.0},
{"name": "Cantonizacion de El Carmen", "size": 6.0},
{"name": "Cantonizacion de Guaranda",  "size": 6.0},
{"name": "Cantonizacion de Latacunga", "size": 6.0},
{"name": "Cantonizacion de Libertad",  "size": 6.0},
{"name": "Cantonizacion de Quevedo",   "size": 6.0},
{"name": "Cantonizacion de Riobamba",  "size": 6.0},
{"name": "Cantonizacion de Salinas",   "size": 6.0},
{"name": "Cantonizacion del Puyo",     "size": 6.0},
{"name": "Carnaval",                   "size": 0.0},
{"name": "Dia de Difuntos",            "size": 6.0},
{"name": "Dia de la Madre",            "size": 5.0},
{"name": "Dia de la Madre-1",          "size": 5.0},
{"name": "Dia del Trabajo",             "size": 5.0},
{"name": "Fundacion de Guayaquil",    "size": 5.0},
{"name": "Fundacion de Guayaquil-1",  "size": 5.0},
{"name": "Fundacion de Quito",        "size": 6.0},
{"name": "Fundacion de Quito-1",      "size": 6.0},
{"name": "Navidad+1                                      ", "size": 6.0},
{"name": "Navidad-1                                      ", "size": 6.0},
{"name": "Navidad-2                                      ", "size": 6.0},
{"name": "Navidad-3                                      ", "size": 6.0},
{"name": "Navidad-4                                      ", "size": 6.0},
]
},
{
"name":  "Holiday",
"children":[
{"name": "Fundacion de Ambato",       "size": 6.0},
{"name": "Fundacion de Cuenca",       "size": 7.0},
{"name": "Fundacion de Esmeraldas",   "size": 6.0},
{"name": "Fundacion de Ibarra",       "size": 7.0},
{"name": "Fundacion de Loja",         "size": 6.0},
{"name": "Fundacion de Machala",      "size": 6.0},
{"name": "Fundacion de Manta",        "size": 6.0},
{"name": "Fundacion de Riobamba",     "size": 6.0},
{"name": "Fundacion de Santo Domingo", "size": 6.0}
]
},
{
"name": "Event",
"children": [
{"name": "Inauguracion Mundial de futbol Brasil          ", "size": 1.0},
{"name": "Independencia de Ambato                        ", "size": 6.0},
{"name": "Independencia de Cuenca                        ", "size": 6.0},
{"name": "Independencia de Guaranda                      ", "size": 6.0},
{"name": "Independencia de Guayaquil                     ", "size": 6.0},
{"name": "Independencia de Latacunga                     ", "size": 6.0},
{"name": "Mundial de futbol Brasil: Cuartos de Final     ", "size": 2.0},
{"name": "Mundial de futbol Brasil: Ecuador-Francia      ", "size": 1.0},
{"name": "Mundial de futbol Brasil: Ecuador-Honduras     ", "size": 1.0},
{"name": "Mundial de futbol Brasil: Ecuador-Suiza        ", "size": 1.0},
{"name": "Mundial de futbol Brasil: Final                ", "size": 1.0},
{"name": "Mundial de futbol Brasil: Octavos de Final     ", "size": 4.0},
{"name": "Mundial de futbol Brasil: Semifinales          ", "size": 2.0},
{"name": "Mundial de futbol Brasil: Tercer y cuarto lugar", "size": 1.0},
{"name": "Navidad                                        ", "size": 6.0},
{"name": "Primer Grito de Independencia                  ", "size": 6.0},
{"name": "Primer dia del ano                             ", "size": 5.0},
{"name": "Primer dia del ano-1                           ", "size": 5.0},
{"name": "Black Friday",               "size": 3.0},
{"name": "Cyber Monday",               "size": 3.0},
{"name": "Provincializacion Santa Elena                  ", "size": 6.0},
{"name": "Provincializacion de Cotopaxi                  ", "size": 6.0},
{"name": "Provincializacion de Imbabura                  ", "size": 6.0},
{"name": "Provincializacion de Santo Domingo             ", "size": 6.0},
{"name": "Terremoto Manabi                               ", "size": 1.0},
{"name": "Terremoto Manabi+1                             ", "size": 1.0},
{"name": "Terremoto Manabi+10                            ", "size": 1.0},
{"name": "Terremoto Manabi+11                            ", "size": 1.0},
{"name": "Terremoto Manabi+12                            ", "size": 1.0},
{"name": "Terremoto Manabi+13                            ", "size": 1.0},
{"name": "Terremoto Manabi+14                            ", "size": 1.0},
{"name": "Terremoto Manabi+15                            ", "size": 1.0},
{"name": "Terremoto Manabi+16                            ", "size": 1.0},
{"name": "Terremoto Manabi+17                            ", "size": 1.0},
{"name": "Terremoto Manabi+18                            ", "size": 1.0},
{"name": "Terremoto Manabi+19                            ", "size": 1.0},
{"name": "Terremoto Manabi+2                             ", "size": 1.0},
{"name": "Terremoto Manabi+20                            ", "size": 1.0},
{"name": "Terremoto Manabi+21                            ", "size": 1.0},
{"name": "Terremoto Manabi+22                            ", "size": 1.0},
{"name": "Terremoto Manabi+23                            ", "size": 1.0},
{"name": "Terremoto Manabi+24                            ", "size": 1.0},
{"name": "Terremoto Manabi+25                            ", "size": 1.0},
{"name": "Terremoto Manabi+26                            ", "size": 1.0},
{"name": "Terremoto Manabi+27                            ", "size": 1.0},
{"name": "Terremoto Manabi+28                            ", "size": 1.0},
{"name": "Terremoto Manabi+29                            ", "size": 1.0},
{"name": "Terremoto Manabi+3                             ", "size": 1.0},
{"name": "Terremoto Manabi+30                            ", "size": 1.0},
{"name": "Terremoto Manabi+4                             ", "size": 1.0},
{"name": "Terremoto Manabi+5                             ", "size": 1.0},
{"name": "Terremoto Manabi+6                             ", "size": 1.0},
{"name": "Terremoto Manabi+7                             ", "size": 1.0},
{"name": "Terremoto Manabi+8                             ", "size": 1.0},
{"name": "Terremoto Manabi+9                             ", "size": 1.0}
]
},
{
"name": "Transfer",
"children":[
{"name": "Traslado Batalla de Pichincha         ", "size": 2.0},
{"name": "Traslado Fundacion de Guayaquil       ", "size": 1.0},
{"name": "Traslado Fundacion de Quito           ", "size": 1.0},
{"name": "Traslado Independencia de Guayaquil   ", "size": 3.0},
{"name": "Traslado Primer Grito de Independencia", "size": 2.0},
{"name": "Traslado Primer dia del ano           ", "size": 1.0},
{"name": "Viernes Santo                         ", "size": 5.0}
]
},
    {
"name": "Bridge",
"children":[
{"name": "Puente Dia de Difuntos                         ", "size": 1.0},
{"name": "Puente Navidad                                 ", "size": 2.0},
{"name": "Puente Primer dia del ano                      ", "size": 2.0},
]
},
{
"name": "Work Day",
"children":[
    {"name": "Recupero puente Navidad", "size": 2.0},
    {"name": "ecupero puente primer dia del ano", "size": 2.0},
    {"name": "Recupero Puente Navidad", "size": 2.0},
    {"name": "Recupero Puente Primer dia del ano", "size": 2.0},
    {"name": "Recupero Puente Dia de Difuntos", "size": 2.0}
]
}
] 
}                          
# dumping the holiday_events data into a json file
with open('output.json', 'w') as outfile:  
    json.dump(holiday_json, outfile)
pd.read_json('output.json').head()

#Embedding the html string
html_string = """
<!DOCTYPE html>
<meta charset="utf-8">
<style>

.node {
  cursor: pointer;
}

.node:hover {
  stroke: #000;
  stroke-width: 1.5px;
}

.node--leaf {
  fill: white;
}

.label {
  font: 11px "Helvetica Neue", Helvetica, Arial, sans-serif;
  text-anchor: middle;
  text-shadow: 0 1px 0 #fff, 1px 0 0 #fff, -1px 0 0 #fff, 0 -1px 0 #fff;
}

.label,
.node--root,
.node--leaf {
  pointer-events: none;
}

</style>
<svg width="760" height="760"></svg>
"""
# Finally embed the D3.js to produce the circular treemap
js_string="""
 require.config({
    paths: {
        d3: "https://d3js.org/d3.v4.min"
     }
 });

  require(["d3"], function(d3) {

   console.log(d3);

var svg = d3.select("svg"),
    margin = 20,
    diameter = +svg.attr("width"),
    g = svg.append("g").attr("transform", "translate(" + diameter / 2 + "," + diameter / 2 + ")");

var color = d3.scaleSequential(d3.interpolateViridis)
    .domain([-4, 4]);

var pack = d3.pack()
    .size([diameter - margin, diameter - margin])
    .padding(2);

d3.json("output.json", function(error, root) {
  if (error) throw error;

  root = d3.hierarchy(root)
      .sum(function(d) { return d.size; })
      .sort(function(a, b) { return b.value - a.value; });

  var focus = root,
      nodes = pack(root).descendants(),
      view;

  var circle = g.selectAll("circle")
    .data(nodes)
    .enter().append("circle")
      .attr("class", function(d) { return d.parent ? d.children ? "node" : "node node--leaf" : "node node--root"; })
      .style("fill", function(d) { return d.children ? color(d.depth) : null; })
      .on("click", function(d) { if (focus !== d) zoom(d), d3.event.stopPropagation(); });

  var text = g.selectAll("text")
    .data(nodes)
    .enter().append("text")
      .attr("class", "label")
      .style("fill-opacity", function(d) { return d.parent === root ? 1 : 0; })
      .style("display", function(d) { return d.parent === root ? "inline" : "none"; })
      .text(function(d) { return d.data.name; });

  var node = g.selectAll("circle,text");

  svg
      .style("background", color(-1))
      .on("click", function() { zoom(root); });

  zoomTo([root.x, root.y, root.r * 2 + margin]);

  function zoom(d) {
    var focus0 = focus; focus = d;

    var transition = d3.transition()
        .duration(d3.event.altKey ? 7500 : 750)
        .tween("zoom", function(d) {
          var i = d3.interpolateZoom(view, [focus.x, focus.y, focus.r * 2 + margin]);
          return function(t) { zoomTo(i(t)); };
        });

    transition.selectAll("text")
      .filter(function(d) { return d.parent === focus || this.style.display === "inline"; })
        .style("fill-opacity", function(d) { return d.parent === focus ? 1 : 0; })
        .on("start", function(d) { if (d.parent === focus) this.style.display = "inline"; })
        .on("end", function(d) { if (d.parent !== focus) this.style.display = "none"; });
  }

  function zoomTo(v) {
    var k = diameter / v[2]; view = v;
    node.attr("transform", function(d) { return "translate(" + (d.x - v[0]) * k + "," + (d.y - v[1]) * k + ")"; });
    circle.attr("r", function(d) { return d.r * k; });
  }
});
  });
 """
h = display(HTML(html_string))
j = IPython.display.Javascript(js_string)
IPython.display.display_javascript(j)

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Javascript Error: require is not defined is the Jupyter Notebook Macbook Pro OS