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Enugue Scripts by Chris Coyier

https://css-tricks.com/snippets/wordpress/include-jquery-in-wordpress-theme/
if (!is_admin()) add_action("wp_enqueue_scripts", "my_jquery_enqueue", 11); function my_jquery_enqueue() { wp_deregister_script('jquery'); wp_register_script('jquery', "http" . ($_SERVER['SERVER_PORT'] == 443 ? "s" : "") . "://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js", false, null); wp_enqueue_script('jquery'); }

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Best practice with passive event listeners

This article by Web Dev Guy.
`
(function() {
var supportsPassive = eventListenerOptionsSupported();

if (supportsPassive) {
var addEvent = EventTarget.prototype.addEventListener;
overwriteAddEvent(addEvent);
}

function overwriteAddEvent(superMethod) {
var defaultOptions = {
passive: true,
capture: false
};

EventTarget.prototype.addEventListener = function(type, listener, options) {
  var usesListenerOptions = typeof options === 'object';
  var useCapture = usesListenerOptions ? options.capture : options;

  options = usesListenerOptions ? options : {};
  options.passive = options.passive !== undefined ? options.passive : defaultOptions.passive;
  options.capture = useCapture !== undefined ? useCapture : defaultOptions.capture;

  superMethod.call(this, type, listener, options);
};

}

function eventListenerOptionsSupported() {
var supported = false;
try {
var opts = Object.defineProperty({}, 'passive', {
get: function() {
supported = true;
}
});
window.addEventListener("test", null, opts);
} catch (e) {}

return supported;

}
})();
`

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