var obj=[
        {name:'王',money:1},
        {name:'李',money:2},
        {name:'张',money:3},
        {name:'王',money:1},
        {name:'李',money:2},
        {name:'张',money:3},
        {name:'王',money:1},
        {name:'李',money:2},
        {name:'张',money:3},
    ]

怎么操作这个数组，使其name相同的项组合到一起，money相加
最终的结果这样

 var obj=[
        {name:'王',money:3},
        {name:'李',money:6},
        {name:'张',money:9},
     
    ]

name字段 王 李 赵 不是固定的，不能如此if（name=='王'）之类的