WeakMap.prototype.set() - JavaScript | MDN

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non-registered symbol

The key of the entry to add to or modify within the WeakMap object. Must be either an object or a non-registered symbol. Object keys are compared by reference, not by value.

WeakMap.prototype.delete()

WeakMap.prototype.get()

WeakMap.prototype.has()

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This page was last modified on Sep 22, 2025 by MDN contributors.

getOrInsertComputed()

[Symbol.hasInstance]()

__defineGetter__()

__defineSetter__()

__lookupGetter__()

__lookupSetter__()

propertyIsEnumerable()

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