Ruby 分两步压缩 3 个数组

Question

我有以下数组：

product_ids = ['id', 'id', 'id'...'id']
product_prices = ['price', 'price', 'price'...'price']

第一步我执行以下操作

list_1 = product_ids.zip(product_prices)

此时我有一个列表，其形式为

list_1 -> [['id', 'price'],['id','price']...]

经过一些计算我得到另一个数组

warehouses_stocks = [['stock_1', 'stock_1'..],['stock_2','stock_2'...]]

如何合并这两个（list_1 和 warehouses_stocks）以获得另一个数组

[['id','price', 'stock_1', 'stock_2'],['id','price', 'stock_1', 'stock_2'],...]

Answer 1

product_ids = ['id_1', 'id_2']
product_prices = ['price_1', 'price_2']
warehouses_stocks = [['stock_1', 'stock_1'],['stock_2','stock_2']]

zip 可以接受多个参数：

product_ids.zip(product_prices, *warehouses_stocks)
#=> [["id_1", "price_1", "stock_1", "stock_2"],
#    ["id_2", "price_2", "stock_1", "stock_2"]]