Tutorial Move Cursor To End of Textarea or Input

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jQuery.fn.putCursorAtEnd = function() {

  return this.each(function() {

    $(this).focus()

    // If this function exists...
    if (this.setSelectionRange) {
      // ... then use it (Doesn't work in IE)

      // Double the length because Opera is inconsistent about whether a carriage return is one character or two. Sigh.
      var len = $(this).val().length * 2;

      this.setSelectionRange(len, len);
    
    } else {
    // ... otherwise replace the contents with itself
    // (Doesn't work in Google Chrome)

      $(this).val($(this).val());
      
    }

    // Scroll to the bottom, in case we're in a tall textarea
    // (Necessary for Firefox and Google Chrome)
    this.scrollTop = 999999;

  });

};
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