chunkWhile

chunk-while.js

const chunkWhile = (iterable, condition) => [...chunkGenerator(iterable, condition)]

function* chunkGenerator(iterable, condition) {
	let currentChunk = []
	for (const element of iterable) {
		currentChunk.push(element)
		if (!condition(element)) {
			yield currentChunk
			currentChunk = []
		}
	}
	if (currentChunk.length) {
		yield currentChunk
	}
}

console.log(
	chunkWhile([1,2,1,2,2,1,1,2], n => n !== 1)
)