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function addEventListenerOnce(target, type, listener, addOptions, removeOptions) {
target.addEventListener(type, function fn(event) {
target.removeEventListener(type, fn, removeOptions);
listener.apply(this, arguments, addOptions);
});
}
addEventListenerOnce(document.getElementById("adCheck"), "click", function (event) {
window.open("https://amzn.to/2CxiHWx",'_blank')
});
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