Anja Petry

HTML

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A comprehensive overview of JavaScript features introduced in recent ECMAScript versions, covering ES2025 down to ES2017. Key additions include import attributes for JSON modules, iterator helper methods for functional programming, new Set operations (union, intersection, difference), RegExp.escape() for safer regex construction, Promise.try() for better async handling, and Float16Array support. The guide also covers array methods like toReversed() and toSorted() for immutable operations, enhanced regular expressions with pattern modifiers and duplicate named capture groups, and various utility improvements across promises, strings, and object manipulation.

New JavaScript features • Exploring JavaScript (ES2025 Edition)