JS如何实现禁止浏览器回退

//禁止浏览器的回退
$(function() {
if (window.history && window.history.pushState) {
$(window).on('popstate', function () {
window.history.pushState('forward', null, '#');
window.history.forward(1);
});
}
window.history.pushState('forward', null, '#'); //在IE中必须得有这两行
window.history.forward(1);
});