判断页面滑动到底部

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window.addEventListener('scroll', function(){
    const scrollHeight = document.body.scrollHeight || document.documentElement.scrollHeight;
    const clientHeight = document.body.clientHeight || document.documentElement.scrollHeight;
    const scrollTop = document.body.scrollTop || document.documentElement.scrollTop;
    if(scrollTop >= scrollHeight - clientHeight){
        console.log('页面滑动到底部')
    }
})