Prompt to Draw on Canvas

by LeroyRon

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.0.0/jquery.min.js"></script>
<div id="button-number">
Button 1
</div>

<canvas id="ComplexPlane" width='5000' height='5000' style="border:1px solid #d3d3d3;"> </canvas>

JavaScript

$("#button-number").click(function() {
  var realPart = prompt("Please, enter the real Part of the number:")
  var imagPart = prompt("Please, enter the imaginary Part of the number:")
  if (realPart != null && imagPart != null) {
    var c = document.getElementById("ComplexPlane");
    var number = c.getContext("2d");
    number.beginPath();
    number.arc(realPart,imagPart,10,0,2*Math.PI);
    number.stroke();
  } 
});