Small fixes
A selection of 80 fixes from 174 pull requests.
8.Deleting a prefix
Removing “abc” also erased the value stored at “ab”. A trie node is empty only when it has neither children nor a value.
11234const nc = child.left === undefined && child.mid === undefined && child.right === undefined ? undefined : childconst nc = child.value === undefined && child.left === undefined && child.mid === undefined && child.right === undefined ? undefined : child