我有一個JavaScript對象是這樣的:查詢JavaScript對象組由
[{"a":1,"b":2},{"a":1,"b":3},{"a":2,"b":4},{"a":2,"b":5}]
我希望將這個對象字段 'a' 和想是這樣的:
[{"a":1,"values":[{"a":1,"b":2},{"a":1,"b":3}]},{"a":2,"values":[{"a":2,"b":4},{"a":2,"b":5}]}]
我有一個JavaScript超過幾千個元素的數組。什麼是最有效的方法來實現這一目標?