text editor in swift code example

Example 1: swift set html text

extension String {
    var htmlToAttributedString: NSAttributedString? {
        guard let data = data(using: .utf8) else { return NSAttributedString() }
        do {
            return try NSAttributedString(data: data, options: [.documentType: NSAttributedString.DocumentType.html, .characterEncoding:String.Encoding.utf8.rawValue], documentAttributes: nil)
        } catch {
            return NSAttributedString()
        }
    }
    var htmlToString: String {
        return htmlToAttributedString?.string ?? ""
    }
}

textView.attributedText = htmlText.htmlToAttributedString

Example 2: how to make a text editor in html

function chooseColor(){
      var mycolor = document.getElementById("myColor").value;
      document.execCommand('foreColor', false, mycolor);
    }

    function changeFont(){
      var myFont = document.getElementById("input-font").value;
      document.execCommand('fontName', false, myFont);
    }

    function changeSize(){
      var mysize = document.getElementById("fontSize").value;
      document.execCommand('fontSize', false, mysize);
    }

    function checkDiv(){
      var editorText = document.getElementById("editor1").innerHTML;
      if(editorText === ''){
        document.getElementById("editor1").style.border = '5px solid red';
      }
    }

    function removeBorder(){
      document.getElementById("editor1").style.border = '1px solid transparent';
    }