Weak references are neat. The best language features unlock different kinds of abstractions, and weak references do exactly that. Let me show you why. In JavaScript we have two APIs to work with weak references: WeakMap and WeakRef.
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Subverting control with weak references
Weak references are neat. The best language features unlock different kinds of abstractions, and weak references do exactly that. Let me show you why. In JavaScript we have two APIs to work with weak references: WeakMap and WeakRef.
Full article