Question

数据来源

var data = {
  "2017-08-09": [
    {
      "time": "09:00",
      "available": true
    },
    {
      "time": "13:00",
      "available": true
    },
    {
      "time": "13:30",
      "available": true
    },
    ]
}

期望的转型

newData = [  "2017-08-09": ['09:00','13:00','13:30'] ]

我尝试了以下内容：

function recursiveFunction(collection){
            var newData = [];

    _.forOwn(collection, function(value, key){ 

        newData.push( {key});
        value.map( item => {
                if (item.available === true)  newData.key = item.time
        })
    }); 
    console.log(newData)
};

但不完全存在：/

http://jsfiddle.net/oa6nbgpy/

Answer 1

使用mapValues，filter仅使用available次来映射值，并使用map拨打时间：

var newData = _.mapValues(data, times => _.map(_.filter(times, 'available'), 'time'));

Answer 2

使用vanilla JS，使用Object#keys获取一系列密钥，并使用Array#map，Array#filter和computed property names将其转换为对象：

var data = {"2017-08-09":[{"time":"09:00","available":true},{"time":"09:30","available":false},{"time":"11:30","available":true}],"2017-08-10":[{"time":"10:00","available":true},{"time":"10:30","available":false}]};

var result = Object.keys(data).map(function(key) {
  return {
    [key]: data[key]
    .filter(function(o) {
      return o.available;
    })
    .map(function(o) {
      return o.time;
    })
  };
});

console.log(result);

lodash - 对象转换

2 个答案: