通过location实现几秒后页面跳转

    点击
    

    
        var btn = document.querySelector('button');
        var div = document.querySelector('div');
        var timer = 5;
        setInterval(function() {
            if (timer == 0) {
                location.href = 'https://www.baidu.com/';
            } else {
                div.innerHTML = '您将在' + timer + '秒钟之后跳转到首页';
                timer--;
            }
 
        }, 1000);