array1 = [{name: "apple",quantity: 2},{name: "grape",quantity: 10},{name: "pear",quantity: 3}]
array2 = [{name: "grape",freshness: 9},{name: "apple",freshness: 7},freshness: 10}]

我想根据array2的顺序对array1进行排序.结果将是：

array1 = [{name: "grape",quantity: 3}]

解决方法

array1 = array1.sort_by { |x| array2.find_index { |y| y[:name] == x[:name] } }

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