[RxJS] Remember previous value by using pairwise operator
by value Using Rxjs Operator previous
2023-09-14 09:00:47 时间
pairwise() will remember the last emit value.
const src = interval(1000) .pipe( pairwise(), scan((acc, [prev, curr]) => { console.log(prev, curr) return acc + curr; }, 0) ).subscribe() // 0 1
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