接口返回的数组拼接成新的数组

Question

上图是返回的数据，我想去掉建名。
组成以下数据

Answer 1

[{
    datetime: '2020-7-14 19:13:27',
    num: 100,
}, {
    datetime: '2020-7-14 19:13:27',
    num: 900,
},{
    datetime: '2020-7-14 19:13:27',
    num: 800,
}].map(Object.values)

Answer 2

const result = data.map(item => [item.datetime, item.num])

Answer 3

  var date =[{
        datetime: '2020-7-14 19:13:27',
        num: 100,
    }, {
        datetime: '2020-7-14 19:13:27',
        num: 900,
    },{
        datetime: '2020-7-14 19:13:27',
        num: 800,
    }];
    function helpTransform(data) {
        var result = []
        var isArray = Object.prototype.toString.call(data) === '[object Array]'
        if (!isArray) {
            return result
        }
        for(var i = 0, len = data.length; i < len; i++) {
            var temp = data[i]
            var arr = [temp.datetime, temp.num]
            result.push(arr)
        }
        return result
    }
    var dd  =helpTransform(date);
    console.log(dd);