How do I remove these green dots randomly?

Question

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var i;
var randomX;
var randomY;
var randomDot = Math.floor(Math.random() * 10) + 1;

var point;
var array01 = [];


function fillDots(){document.querySelector("#fillDots").setAttribute('onmouseover','deleteDots()');
    var interval01 = setInterval(function () {
  let randomX = Math.floor(Math.random() * 427) + 139,
    randomY = Math.floor(Math.random() * 280) + 1;

  point = document.querySelector("#Layer_1").createSVGPoint();
  point.x = randomX;
  point.y = randomY;

  if (document.querySelector("#fillDots").isPointInFill(point)) {
    //isPointInStroke
    let ellipse = document.createElementNS(
      "http://www.w3.org/2000/svg",
      "ellipse"
    );

    document.querySelector("#Layer_1").appendChild(ellipse);
    ellipse.setAttribute("rx", "5");
    ellipse.setAttribute("ry", "5");
    ellipse.setAttribute("cx", randomX + "px");
    ellipse.setAttribute("cy", randomY + "px");
    ellipse.style.fill = "green";
    ellipse.style.opacity = "50%";
    ellipse.setAttribute('class','dotClass');
      
  }
}, 125);
setTimeout(function(){clearInterval(interval01);},4000);


}




function deleteDots(){var ellipseClass = $(".dotClass").toArray();array01.push(ellipseClass[randomDot]);console.log(array01)}

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</head>

<body>
<button onClick="levelOneGF()" id="setLevelOneButton">Level One</button>
    
    <script src="Js/levelOneGF.js"></script>
    </body>
</html>

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x1="186.94" y1="123.34" x2="316.8" y2="-68.67"/><line class="cls-2" x1="182.56" y1="117.26" x2="310.58" y2="-74.72"/><line class="cls-2" x1="177.55" y1="109.97" x2="300.2" y2="-70.89"/><line class="cls-2" x1="174.34" y1="107.23" x2="305.54" y2="-76.21"/><line class="cls-2" x1="170.55" y1="99.92" x2="299.89" y2="-85.33"/><line class="cls-2" x1="165.54" y1="92.62" x2="294.88" y2="-92.63"/><line class="cls-2" x1="161.16" y1="86.55" x2="288.67" y2="-98.68"/><line class="cls-2" x1="156.81" y1="82.31" x2="284.92" y2="-102.92"/><line class="cls-2" x1="152.41" y1="74.4" x2="279.91" y2="-110.83"/><line class="cls-2" x1="149.24" y1="67.08" x2="279.1" y2="-124.93"/><line class="cls-2" x1="144.86" y1="61.01" x2="272.88" y2="-130.98"/><line class="cls-2" x1="139.85" y1="53.71" x2="262.5" y2="-127.15"/><line class="cls-2" x1="346.31" y1="356.53" x2="587.42" y2="339.97"/><line class="cls-2" x1="364.1" y1="288.44" x2="399.07" y2="350.4"/><line class="cls-2" x1="419.32" y1="285.98" x2="451.83" 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x1="61.46" y1="332.96" x2="80.41" y2="332.87"/><line class="cls-4" x1="61.02" y1="336.78" x2="80.76" y2="336.87"/><line class="cls-4" x1="61.2" y1="340.35" x2="80.85" y2="340.43"/><line class="cls-4" x1="61.25" y1="344.33" x2="80.21" y2="344.24"/><line class="cls-4" x1="60.82" y1="348.15" x2="80.55" y2="348.24"/><line class="cls-4" x1="60.99" y1="351.72" x2="80.64" y2="351.8"/><line class="cls-4" x1="61.38" y1="355.2" x2="80.34" y2="355.11"/><line class="cls-4" x1="60.95" y1="359.02" x2="80.68" y2="359.11"/><line class="cls-4" x1="61.12" y1="362.59" x2="80.77" y2="362.67"/><line class="cls-4" x1="61.4" y1="366.63" x2="80.36" y2="366.54"/><line class="cls-4" x1="60.97" y1="370.46" x2="80.71" y2="370.54"/><line class="cls-4" x1="61.14" y1="374.02" x2="80.79" y2="374.11"/><rect class="cls-20" x="263.35" y="104.19" width="8.69" height="3.6"/><path class="cls-20" d="M202,98.51c.65,0,7.85-.12,12.05,4.23a8.58,8.58,0,0,1,2.52,6.77,8.09,8.09,0,0,1-2,5.92c-3.64,4.33-10.5,4.64-11.21,4.66,2.81-1.28,4.36-3.62,3.93-5.92-.52-2.71-3.54-4.07-3.93-4.23-5.23,0-10.46-1.52-15.69-1.52l-.56-1.76L202,105.28c2.75,0,4.92-1.69,4.76-3.59S204.57,98.46,202,98.51Z"/><rect class="cls-20" x="217.45" y="105.49" width="8.69" height="3.6"/><polygon onmouseover="fillDots()" id="fillDots" class="cls-21" points="360.04 -1.44 175.7 2.74 139.85 53.71 293.96 280.3 427.91 102.55 360.04 -1.44"/><line class="cls-22" x1="294.65" y1="94.22" x2="286.3" y2="181.17"/></svg>'}
var i;
var randomX;
var randomY;
var randomDot = Math.floor(Math.random() * 10) + 1;

var point;
var array01 = [];


function fillDots(){document.querySelector("#fillDots").setAttribute('onmouseover','deleteDots()');
    var interval01 = setInterval(function () {
  let randomX = Math.floor(Math.random() * 427) + 139,
    randomY = Math.floor(Math.random() * 280) + 1;

  point = document.querySelector("#Layer_1").createSVGPoint();
  point.x = randomX;
  point.y = randomY;

  if (document.querySelector("#fillDots").isPointInFill(point)) {
    //isPointInStroke
    let ellipse = document.createElementNS(
      "http://www.w3.org/2000/svg",
      "ellipse"
    );

    document.querySelector("#Layer_1").appendChild(ellipse);
    ellipse.setAttribute("rx", "5");
    ellipse.setAttribute("ry", "5");
    ellipse.setAttribute("cx", randomX + "px");
    ellipse.setAttribute("cy", randomY + "px");
    ellipse.style.fill = "green";
    ellipse.style.opacity = "50%";
    ellipse.setAttribute('class','dotClass');
      
  }
}, 125);
setTimeout(function(){clearInterval(interval01);},4000);


}




function deleteDots(){var ellipseClass = $(".dotClass").toArray();console.log(ellipseClass)}


//setInterval(function(){randomX = Math.floor(Math.random() * 220) + 195;randomY = Math.floor(Math.random() * 180) + 90;var ellipse=document.createElementNS("http://www.w3.org/2000/svg", 'ellipse');document.querySelector("#Layer_1").appendChild(ellipse);ellipse.setAttribute('rx','5');ellipse.setAttribute('ry','5');ellipse.setAttribute('cx',randomX+'px');ellipse.setAttribute('cy',randomY+'px');ellipse.style.fill='red'},1000);

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</head>

<body>
<button onClick="levelOneGF()" id="setLevelOneButton">Level One</button>
    
    <script src="Js/levelOneGF.js"></script>
    </body>
</html>

I hover over the lined area and about ten green dots appear, I set those green dots to an array, what I would like to do now is delete about half maybe a third of them at the least when I hover back over them. I tried using removeAttributeNode, and I feel like this may work. so if there is a solution using remove attribute node that would be best. Thank you.

Answer 1

Based on your example, you use a .dotClass to identify the Ellipse that's been added and when you trigger deleteDots function, you select the class and set it to array by using

var ellipseClass = $(".dotClass").toArray()

Then what you need to remove the Ellipse is just call

ellipseClass[i].remove(); // i is the index that you want to remove

Here's the updated results on JSFiddle