js对象数组转为双重数组

原数据

var arr_obj=[{"current_period_val":"896","etl_tmtimestamp":"06-30"},{"current_period_val":"857681.8126000002","etl_tmtimestamp":"07-13"},{"current_period_val":"32984.75","etl_tmtimestamp":"07-14"},{"current_period_val":"53.29","etl_tmtimestamp":"07-16"},{"current_period_val":"503166273.0366667","etl_tmtimestamp":"07-20"},{"current_period_val":"252222.48","etl_tmtimestamp":"07-21"},{"current_period_val":"412","etl_tmtimestamp":"07-22"},{"current_period_val":"167.3023","etl_tmtimestamp":"07-23"}
];

转换后的数据

[["06-30", "896"]
,["07-13", "857681.8126000002"]
,["07-14", "32984.75"]
,["07-16", "53.29"]
,["07-20", "503166273.0366667"]
,["07-21", "252222.48"]
, ["07-22", "412"]
,["07-23", "167.3023"]
]


js代码

var arr_obj=[{"current_period_val":"896","etl_tmtimestamp":"06-30"},{"current_period_val":"857681.8126000002","etl_tmtimestamp":"07-13"},{"current_period_val":"32984.75","etl_tmtimestamp":"07-14"},{"current_period_val":"53.29","etl_tmtimestamp":"07-16"},{"current_period_val":"503166273.0366667","etl_tmtimestamp":"07-20"},{"current_period_val":"252222.48","etl_tmtimestamp":"07-21"},{"current_period_val":"412","etl_tmtimestamp":"07-22"},{"current_period_val":"167.3023","etl_tmtimestamp":"07-23"}];var arr=[];for(var i = 0;i<arr_obj.length;i++){arr[i]=[];arr[i].push(arr_obj[i].etl_tmtimestamp)arr[i].push(arr_obj[i].current_period_val)}console.log(arr);