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WeakSet (ES6)

Category

JavaScript

Type

New or changed feature

Status

Enabled by default (Chrome 36)

Intent stage

None

Summary

ES6 WeakSets are sets of arbitrary JavaScript objects, that hold on to their keys weakly

Standards & signals

• Specification: http://www.ecma-international.org/ecma-262/6.0/#sec-weakset-objects
• Firefox: In development
• Safari: Shipped/Shipping
• Web developers: No signals

Docs: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakSet

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