Disallow using ReplaySubject, publishReplay or shareReplay without specifying the buffer size (rxjs-x/no-ignored-replay-buffer)

💼 This rule is enabled in the following configs: ✅ recommended, 🔒 strict.

This rule effects failures if the buffer size of a replay buffer is not explicitly specified.

Rule details

Examples of incorrect code for this rule:

import { ReplaySubject } from "rxjs";
const subject = new ReplaySubject<number>();

import { of, shareReplay } from "rxjs";
of(42).pipe(shareReplay({ refCount: true }));

Examples of correct code for this rule:

import { ReplaySubject } from "rxjs";
const subject = new ReplaySubject<number>(1);

import { ReplaySubject } from "rxjs";
const subject = new ReplaySubject<number>(Infinity);

import { of, shareReplay } from "rxjs";
of(42).pipe(shareReplay({ refCount: true, bufferSize: 1 }));

When Not To Use It

If you don't care about implicitly defaulting to Infinity in your replay buffers, then you don't need this rule.

Resources

• Rule source
• Test source