Time for another ECMAScript proposal draft. This time it's WeakRef. Weak references had their first – indirect – appearance in ES6, with the arrival of WeakMap and WeakSet.
Nicolás takes us through the new proposal and explains what weak references are, and who they might be important to.
A trie, also called digital tree and sometimes radix tree or prefix tree (as they can be searched by prefixes), is an ordered tree data structure that is used to store a dynamic set or associative array where the keys are usually strings.