How to remove special characters from the SharePoint list column using calculated column - SharePoint online

How to display SharePoint list item status values into images/icons using simple JavaScript

src="http://code.jquery.com/jquery-latest.min.js"

$(document).ready(
  function() {
    $('td.ms-vb2:contains("Completed"), ' +
      'td.ms-vb2:contains("Pending")').each(
        function() {
          $(this).hide();
          $(this).html(ReplaceColorTextWithImage($(this).html()));
          $(this).show("slow");
        }
    );
  }
);

function ReplaceColorTextWithImage(strColorText) {
  var strColorImage = "";

  switch(strColorText) {
    case "Completed":
      strColorImage = "green";
      break;
    case "Not Started":
      strColorImage = "Red";
      break;
  }

 return ""

}

 return "$$>";

Credit /Source

http://www.dalesandro.net/replace-text-with-images-in-sharepoint-view-using-jquery/

Using Jequery

https://www.sharepointusecases.com/2014/04/replacing-strings-icons-list-view-jquery-sharepoint-2010/