I am new to Motoko and internet computer, when I am working I am having too much difficulties that might look simple, I am having difficulties doing this, posting the link to forum question here
https://forum.dfinity.org/t/how-to-traverse-inner-array-of-a-trie/12941?u=manubodhi
Please help if somebody is well versed in Motoko and Dfinity
I prepared a small code in motoko playground for you in order to see how you can traverse inner array and achieve your goal of filtering Trie. Here is as well saved project in motoko playground: https://m7sm4-2iaaa-aaaab-qabra-cai.raw.ic0.app/?tag=1150943578
Shortly to filter through inner array you can use:
Full code of canister implementation: