JS: ECMAScript 2025

Iterator helpers

• JS: Iterator (class)

• JS: Iterator.from

• JS: Iterator.prototype.map
• JS: Iterator.prototype.forEach
• JS: Iterator.prototype.filter
• JS: Iterator.prototype.every
• JS: Iterator.prototype.some
• JS: Iterator.prototype.find

• JS: Iterator.prototype.reduce
• JS: Iterator.prototype.take
• JS: Iterator.prototype.drop
• JS: Iterator.prototype.flatMap
• JS: Iterator.prototype.toArray

• https://github.com/tc39/proposal-iterator-helpers

Reference

• https://tc39.es/ecma262/2025/multipage/