lodash - 對象轉變

Question

數據源

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

需要的轉換

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

我曾嘗試以下：

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) 
}; 

但也不能令人信服：/

http://jsfiddle.net/oa6nbgpy/

Answer 1

香草JS，使用Object#keys拿到鑰匙的數組，並使用Array#map，Array#filter和computed property names其轉換爲對象：使用

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);

Answer 2

跨值的Map mapValues，filter只有available時間和採用時間map：

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