Referencezip
Reference · 29
zip
zip
Emits once every source has its nth position ready.
Signature
zip([a$, b$, ...]): Observable<[A, B, ...]>Marble diagram
a: --a----b---|
b: ----1-----2|
result: ----[a,1]--[b,2]|What it does
Waits for the nth next from each source, emits them together as a tuple, then moves to n+1. Like a zipper — synchronizing by index.
When to use
Paired data: keys + values, names + avatars, two processes stepping in lockstep.
Gotcha
If one source emits faster than another, the extra values are buffered in memory. For differing speeds, combineLatest is usually better.
See also
combineLatest, forkJoin, pairwise
script.ts
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