Cypher zip collections

问题

If I have two collections, how might I zip them together?

with [1,2,3] as nums, ['a', 'b', 'c'] as letters
... wat do? ...
return zipped // [{a: 1}, {b: 2}, {c: 3}]

回答1:

It may not be possible to dynamically assign map keys (e.g., using the items in letters). But this query will return something similar to what you want (using collections instead of maps):

WITH [1,2,3] as nums, ['a', 'b', 'c'] as letters
RETURN EXTRACT(i IN RANGE(0, LENGTH(nums) - 1) | [letters[i], nums[i]]) AS result;

The result is:

[["a",1],["b",2],["c",3]] 

来源：https://stackoverflow.com/questions/29262918/cypher-zip-collections