This proposal aims to introduce a set of "parallel primitives" directly into the JavaScript language, enabling developers to leverage the multi-core and multi-threaded capabilities of modern CPUs in a more efficient and transparent manner, without the overhead of Workers, message serialization/deserialization, or the need to load external code. The idea is to offer a more "lightweight" and integrated form of parallelism within the language.
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This post both appears to be generated by an LLM and also lacks any concrete questions or proposal idea.
Each JavaScript agent executes the language in a single threaded fashion. Without example code it is difficult to guess what primitives could be added that would add parallelisation in a way that is meaningfully different from workers.
IMO GitHub - tc39/proposal-structs: JavaScript Structs: Fixed Layout Objects is one of the most interesting 262 proposals in this space.
Also note that the proposal to add SIMD to 262 was withdrawn in favour of adding SIMD to wasm. GitHub - tc39/ecmascript_simd: SIMD numeric type for EcmaScript
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