All you need to know about the bufferCount operator in RxJS

bufferCount(bufferSize: number, startBufferEvery: number = null): OperatorFunction
const source = of( 1 , 2 , 3 , 4 , 5 ); // (1)const buffered = source.pipe(bufferCount( 2 , 2 )); // (2)buffered.subscribe(val => console.log(val));
// [1, 2]// [3, 4]// [5]

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