Updates from the 101th TC39 meeting

• proposal-is-error

  1 33 2.8 HTML

  ECMAScript Proposal, specs, and reference implementation for Error.isError

  

Error.isError: Error.isError tests if a value is an Error instance, irrespective of its Realm origin.

• proposal-signals

  3 2,806 9.0 TypeScript

  A proposal to add signals to JavaScript.

  

Signals: A declarative programming model for updating based on changes to state.

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• proposal-using-enforcement

  1 6 5.6 JavaScript

  Follow-on Proposal to ECMAScript Explicit Resource Management to enforce `using` for some resources

  

Strict using: Proposal to mandate the use of using for certain resources.

• proposal-dynamic-code-brand-checks

  1 22 5.2 HTML

  TC39 proposal that enables flexible brand checks before dynamic code loading

  

Dynamic code brand checks:Flexible brand checks before dynamic code loading.

• proposal-math-sum

  2 64 7.2 JavaScript

  TC39 proposal to add a summation method to JavaScript

  

Math.sumPrecise: summation method.

• proposal-set-methods

  16 635 4.5 HTML

  Proposal for new Set methods in JS

  

Set Methods: New Set methods

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