javascript group array by key
function groupArrayOfObjects(list, key) {
return list.reduce(function(rv, x) {
(rv[x[key]] = rv[x[key]] || []).push(x);
return rv;
}, {});
};
var people = [
{sex:"Male", name:"Jeff"},
{sex:"Female", name:"Megan"},
{sex:"Male", name:"Taylor"},
{sex:"Female", name:"Madison"}
];
var groupedPeople=groupArrayOfObjects(people,"sex");
console.log(groupedPeople.Male);//will be the Males
console.log(groupedPeople.Female);//will be the Femalesgroup array php by key
private function group_by($array, $key) {
$return = array();
foreach($array as $val) {
$return[$val->$key][] = $val;
// ou para gettype($val) = array
// $return[$val[$key]][] = $val;
}
return $return;
}javascript group by key
result = array.reduce((h, obj) => Object.assign(h, { [obj.key]:( h[obj.key] || [] ).concat(obj) }), {})php array group by key
$arrRoom[] = array("RoomCode" => "Deluxe",
"Rates" => array ( array(
"BoardCode" => "RO",
"Price" => 100)
));
$arrRoom[] = array("RoomCode" => "Standard",
"Rates" => array ( array(
"BoardCode" => "RO",
"Price" => 100)
));
$arrRoom[] = array("RoomCode" => "Deluxe",
"Rates" => array (array(
"BoardCode" => "RO",
"Price" => 200)
));
foreach($arrRoom as $room)
{
foreach($room['Rates'] as $rates)
{
$nRooms[$room['RoomCode']][$rates['BoardCode']][] = array("RoomCode" => $room['RoomCode'],
"MealCode" => $rates['BoardCode'],
"Price" => $rates['Price']);
}
}
echo "\n ==== Output in Json Format ==== \n";
{
"Deluxe": {
"RO": [
{
"RoomCode": "Deluxe",
"MealCode": "RO",
"Price": 100
},
{
"RoomCode": "Deluxe",
"MealCode": "RO",
"Price": 200
}
]
},
"Standard": {
"RO": [
{
"RoomCode": "Standard",
"MealCode": "RO",
"Price": 100
}
]
}
}Copyright © 2021 Codeinu
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