TC39 Advances Key Proposals: Deferred Import Evaluation, Err...
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Ecma TC39, the committee responsible for maintaining the ECMAScript programming language specification, met in Finland for its 102nd meeting, advancing several key proposals. These include Deferred Import Evaluation, which aims to improve performance by delaying the execution of JavaScript imports until necessary, and Error.isError(), a method to determine if a value is an error instance, aiding debugging and serialization efforts. Other proposals like RegExp Escaping and Promise.try also progressed, the latter providing a more straightforward way to start promise chains and handle errors. The committee, which operates on consensus, discussed these advancements over a three-day period, with more proposals expected to be evaluated during the week. All open proposals and their statuses are tracked on GitHub, and a detailed agenda for the meeting is available online.
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