Help me in solving JS27 problem

help
,
1

My issue

correct my code

My code

content1Description = "This is Task 1";
content1Date = "2023-07-04"

content2Description = "This is Task 2";
content2Date = "2023-07-12"

content3Description = "This is Task 3";
content3Date = "2024-01-01"

var currentDate = new Date();

displayContents(content1Description, content1Date);
displayContents(content2Description, content2Date);
displayContents(content3Description, content3Date);

function displayContents(contentDescription, contentDate) {
  if (new Date(contentDate) <= currentDate.getTime()) {
      /* Solution as follows */
      var container1 = document.getElementById("highPriorityContainer");
      var contentItem1 = createContentElement(contentDescription, contentDate);      
      highPriorityContainer.appendChild(contentItem1);
  } else {
      var container2 = document.getElementById("lowPriorityContainer");
      var contentItem2 = createContentElement(contentDescription, contentDate);
      lowPriorityContainer.appendChild(contentItem2);
  }
}

function createContentElement(description, date) {
        var contentItem=document.createElement("div");
        var checkbox=document.createElement("input");
        checkbox.type="checkbox";
        var label=document.createElement("label");
        label.innerHTML=description+date;
        contentItem.appendChild(label,checkbox);
    
}

Learning course: Web development using JavaScript
Problem Link: Building the createContentElement() Function in Web development using JavaScript