Reorganisieren Sie Array-Elemente basierend auf zwei Attributen in Gruppen

Question

Ich habe ein Array wie dieses:

let array1 = [
{"id":"A", "serial":"C"},
{"id":"A", "serial":"E"},
{"id":"A", "serial":"B"},
{"id":"A", "serial":"B"},
{"id":"B", "serial":"A"},
{"id":"B", "serial":"C"},
{"id":"C", "serial":"B"},
{"id":"C", "serial":"F"}
]

Ich möchte nach denselben ID-Serien-Paaren neu gruppieren. {"id": "X", "serial": "Y"} und {"id": "Y", "serial": "X"} sollten als dasselbe Paar betrachtet werden.

Die erwarteten Ergebnisse sind wie folgt:

let res = [
[{"id":"A", "serial":"C"}],
[{"id":"A", "serial":"E"}],
[{"id":"A", "serial":"B"},{"id":"A", "serial":"B"},{"id":"B", "serial":"A"}],
[{"id":"B", "serial":"C"},{"id":"C", "serial":"B"}],
[{"id":"C", "serial":"F"}]
]

Wie setze ich das um?

Answer 1

无法想到更好的方法来做这个。一种方法是按照唯一键进行分组。在这里，唯一键将是A|B，对于两个组合{"id":"A", "serial":"B"}和{"id":"A", "serial":"B"}

let array1 = [
{"id":"A", "serial":"C"},
{"id":"A", "serial":"E"},
{"id":"A", "serial":"B"},
{"id":"A", "serial":"B"},
{"id":"B", "serial":"A"},
{"id":"B", "serial":"C"},
{"id":"C", "serial":"B"},
{"id":"C", "serial":"F"}
]

const res = Object.values(array1.reduce((acc, curr) => {
  const k = [curr.id, curr.serial].sort().join('|');
  (acc[k] ??= []).push(curr);
  return acc;
}, {}));


console.log(res)