Question

****我有一个包含其他数组的数组，如下所示，我的目的是在其中找到在其中的第3个位置包含字符串Type 4 Sheets的数组。一般来说，如果我只能在较大的数组中获得那些包含第n个位置的特定字符串的数组，那将真的很棒。

[[sheets at upper, intermediate and lower, Type 4 Sheets, Sheets, 8.0, 1.5, 5.0, , 3.0, Exact Sized Material # 1],
 [sheets at  back , Type 4 Sheets, Sheets, 8.0, 1.0, 2.5, , 1.0, Exact Sized Material # 2], 
[dfsdfdsfsd, Type 2 Gola, Gola, 5.0, 1.5, 2.5, , 2.0, Exact Sized Material # 3],
 [sheets at vertical divider, Type 1 Gola, Gola, , 1.5, 2.5, , 1.0, Exact Sized Material # 4], 
[sheets at shutters,  , , 2.0, , 2.5, , 4.0, Exact Sized Material # 5], 
[sheets at shutters,  , , 8.0, , , , 12.0, Exact Sized Material # 6], 
[sheets at shutters,  , , 8.0, , , , 8.0, Exact Sized Material # 7], 
[sheets at shutters,  , , 2.5, , , , 8.0, Exact Sized Material # 8], 
[sheets at shutters,  , , 1.5, , , , 8.0, Exact Sized Material # 9], 
[sheets at shutters,  , , 2.5, , , , 8.0, Exact Sized Material # 10], 
[sheets at shutters,  , , 2.5, , , , 4.0, Exact Sized Material # 11], 
[sheets at shutters,  , , 2.0, , , , 32.0, Exact Sized Material # 12], 
[sheets at shutters,  , , 2.5, , , , 32.0, Exact Sized Material # 13]]

Answer 1

看看是否有帮助

arr.filter(x => x[positionToCheck] === stringToCheck)

根据此处的评论为转译版本

arr.filter(function (x) {
  return x[positionToCheck] === stringToCheck;
});

Answer 2

这可以通过使用SELECT i.number, i.description, MAX(CASE WHEN am.attribute_code = 'brand' then am.attribute_value END) as brand, MAX(CASE WHEN am.attribute_code = 'model' then am.attribute_value END) as model, MAX(CASE WHEN am.attribute_code = 'category' then am.attribute_value END) as category, MAX(CASE WHEN am.attribute_code = 'subcategory' then am.attribute_value END) as subcategory FROM items i JOIN attr_maps am ON am.number = i.number WHERE i.number = AB123 GROUP BY i.number, i.description在javascript中完成：

forEach

results = []; outerarray.forEach(function(a) { if (a[2]==="Type 4 Sheets") results.push(a) });将是a

中的每个数组

outerarray应该具有所有内部数组，这些数组在第3个包含给定的字符串。位置。

需要在容器数组中查找数组，该容器数组在apps脚本（首选）或Java脚本中的特定位置包含特定文本

2 个答案: