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by orthosie

HTML

<h1>
Get current cursor position in text input
</h1>
<input type="text" name="nameEdit" id="textt" value="">

JavaScript

/*
** Returns the caret (cursor) position of the specified text field.
** Return value range is 0-oField.value.length.
*/
function doGetCaretPosition (oField) {

  // Initialize
  var iCaretPos = 0;

  // IE Support
  if (document.selection) {

    // Set focus on the element
    oField.focus();

    // To get cursor position, get empty selection range
    var oSel = document.selection.createRange();

    // Move selection start to 0 position
    oSel.moveStart('character', -oField.value.length);

    // The caret position is selection length
    iCaretPos = oSel.text.length;
  }

  // Firefox support
  else if (oField.selectionStart || oField.selectionStart == '0')
    iCaretPos = oField.selectionStart;

  // Return results
  return iCaretPos;
}
$(document).ready(function() {
           
$('#textt').keyup(function(event) {
    t = doGetCaretPosition(event.currentTarget);
    console.log(t);
});
                 } );