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Keypress

Bind an event handler to the "keypress" JavaScript event, or trigger that event on an element.

<div>
<input type="text" value="" id="txtKeypress">
<?php
echo
YsJQuery::newInstance()
  ->onKeypress()
  ->in('#txtKeypress')
  ->execute(
    new YsJsFunction("alert('On key down, The event code is = '
                      + String.fromCharCode(event.keyCode))", 'event')
  )
?>
</div>