根据某一属性，对数组对象排序

  arr=[
        {'name':'小冰火人','name1':'已完成','value1':306,'value2':309,'value3':100},
        {'name':'preen','name1':'订单数量','value1':1159,'value2':1190,'value3':100},
        {'name':'杨浦品越浓','name1':'完成率','value1':237,'value2':237,'value3':100},
        {'name':'你好啊','name1':null,'value1':186,'value2':192,'value3':100},
        {'name':'你不好','name1':null,'value1':1833,'value2':2036,'value3':100}
        ]
       
var sortArr = function(obj1, obj2) {
    var val1 = obj1.value1;
    var val2 = obj2.value1;
    if(val1 > val2) {
        return -1;
    } else if(val1 < val2) {
        return 1;
    } else {
        return 0;
    }
}

arr.sort(sortArr)

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