[英]underscore js groupby array inside JSON
我已经分配了一个任务,以使用下划线js对angular js中的数据进行分组。
我的JSON:
$scope.myData= {
"buslist":
{
"code":"1",
"message":"Success",
"fromStationCode":"71",
"searchResult": [
{
"arrivalTime": "17:00:00",
"availableSeats": "42",
"boardingPointDetails": [
{
"code": "1631",
"name": "Koyambedu",
"time": "09:30:00"
},
{
"code": "961296",
"name": "Nerkundram",
"time": "09:45:00"
}
]
},
{
"arrivalTime": "18:00:00",
"availableSeats": "32",
"boardingPointDetails": [
{
"code": "2084",
"name": "Adyar",
"time": "09:30:00"
},
{
"code": "961296",
"name": "Madurai",
"time": "09:45:00"
}
]
}
]
}
}
我无法使用下划线js使用“名称”字段对数据进行分组。 我试过了 :
$scope.groups = _.groupBy($scope.myData,function(element) {
return element.searchResult.boardingPointDetails.name;
});
但是失败了。 需要帮忙。 提前致谢。
这是我为您解决的问题:
var tempResult = [];
_.each($scope.myData.buslist.searchResult, function(result) {
_.each(result.boardingPointDetails, function(detail) {
var item = { name: detail.name, availableSeats: result.availableSeats };
tempResult.push(item); // make an array of items with needed data on same nesting level
});
});
var endResult = _.groupBy(tempResult, 'name'); // group the items by name
看到它适合您的情况: JsFiddle
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