remain

var store = new FormData();
function uploadValidate(params) { 
    var flag = true;
    for (var i = 0; i < $('#file_order')[0].files.length; i++) {
        if(store.getAll('files').length > 3){
            showTip('tipInfo1','附件数量最大为3');
            return false
        }else{  
            store.append('files', $('#file_order')[0].files[i]);    
        }
        
    }
    let obj = {};
    let peon = store.getAll('files').reduce((cur,next) => {
        console.log(next)
        obj[next.name] ? "" : obj[next.name] = true && cur.push(next);
        return cur;
    },[]) //设置cur默认类型为数组，并且初始值为空的数组
    
    var formData = new FormData();
    // for (var i = 0; i < $('#file_order')[0].files.length; i++) {
    //     formData.append('files', $('#file_order')[0].files[i]);
    // }
    for (var i = 0; i < peon.length; i++) {
        formData.append('files', peon[i]);
    }
    if (formData.getAll('files').length == 0) {
        return false
    }
    if (formData.getAll('files').length > 3) {
        showTip('tipInfo1','附件数量最大为3');
        return false
    }
    $.each(formData.getAll('files'), function (i, val) {
        var num = val.name.lastIndexOf(".")
        var str = val.name.slice(num)
        if (str != '.doc' && str != '.docx' && str != '.xls' && str != '.xlsx' && str != '.ppt' && str != '.pptx' && str != '.pdf' && str != '.txt' && str != '.pcap' && str != ".png" && str != '.jpg' && str != '.dat' && str != '.xml' && str != '.bz2' && str != '.zip' && str != '.tar' && str != '.gz'&& str != '.eml'&& str != '.MP4') {
            showTip('tipInfo1','文件格式不正确');
            flag = false
            return false
        }
        if (val.size > 52428800) {
            showTip('tipInfo1','单个文件最大50m');
            flag = false
            return false
        }
    })
    if (!flag) {
        return false
    }
    $.ajax({
        type: 'post',
        url: newUploadFileUrl,
        data: formData,
        cache: false,
        processData: false,
        contentType: false,
        success: function (res) {
            if (res.success) {
                var data = res.message;
                if(data != ""){
                    $('#fileINFO').val(JSON.stringify(data));
                }
            }else{
                showTip('tipInfo1',res.message);
            }
        },
        error: function (err) {
            console.log(err);
        }
    })
  }