Question

我必须使用Date.parse（）将日期转换为时间戳。每次我找到键＆＃34; Date__c＆＃34;。

[
   {
      "Date__c":"07/30/2015",
      "End_Time__c":"14:00",
      "Start_Time__c":"07:00"
   },
   {
      "Date__c":"07/30/2015",
      "End_Time__c":"14:00",
      "Start_Time__c":"07:00"
   },
   {
      "Date__c":"07/30/2015",
      "End_Time__c":"14:00",
      "Start_Time__c":"07:00"
   }
]

To become


[
   {
      "Date__c":1438185600000,
      "End_Time__c":"14:00",
      "Start_Time__c":"07:00"
   },
   {
      "Date__c":1438185600000,
      "End_Time__c":"14:00",
      "Start_Time__c":"07:00"
   },
   {
      "Date__c":1438185600000,
      "End_Time__c":"14:00",
      "Start_Time__c":"07:00"
   }
]

Answer 1

arr = [
   {
      "Date__c":"07/30/2015",
      "End_Time__c":"14:00",
      "Start_Time__c":"07:00"
   },
   {
      "Date__c":"07/30/2015",
      "End_Time__c":"14:00",
      "Start_Time__c":"07:00"
   },
   {
      "Date__c":"07/30/2015",
      "End_Time__c":"14:00",
      "Start_Time__c":"07:00"
   }
]

_.map(arr, 
    function (a) { 
        return _.mapValues(a, function(v, k) { 
                return "Date__c" == k ? new Date(v).valueOf() : v; 
            }
        )
    }
)

使用lodash / underscore如何更新密钥的值

1 个答案: