ECMAScript 2024, a planned update to ECMA’s standard for JavaScript, is set to include seven new features ranging from array grouping to Unicode strings. The 2024 specification, from ECMA’s Technical Committee 39, is expected to be approved in June.

Among the list of finished features cited for publication this year is a proposal for array grouping. Motivating this proposal is the notion that array grouping is a common operation best exemplified by SQL’s GROUP BY clause and mapreduce programming. The ability to combine like data into groups lets developers compute higher order data sets.

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