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  • JS滚轮事件封装

    wheel(function(isTrue){
    console.log(isTrue);
    })

    function wheel(callback){
    if(navigator.userAgent.indexOf('Firefox')==-1){
    if(document.attachEvent){
    document.attachEvent('onmousewheel',fn);
    }else{
    document.addEventListener('mousewheel',fn);
    }
    }else{
    document.addEventListener('DOMMouseScroll',fn)
    }

    function fn(ev){
    var oEvent = ev || event;
    if(oEvent.wheelDelta){
    if(oEvent.wheelDelta>=120){
    callback && callback(true);
    }else{
    callback && callback(false);
    }
    }else{
    if(oEvent.detail>=3){
    callback && callback(true);
    }else{
    callback && callback(false);
    }

    }
    }
    };

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  • 原文地址:https://www.cnblogs.com/pssp/p/5592324.html
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