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Time based operators comparison
RxJS offers a rich selection of time based operators but this diversity can come at cost when choosing the right operator for a task at hand. Below is a visual comparison of popular time based operators.
Compared operators:
- sampleTime
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/*
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interval ^0-------1-------2-------3-------4-------5-------6-------7-------8-------9------|
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auditTime ^------------------------3-------------------------------7----------------------|
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bufferTime ^----------------[0,1]-------------------[2,3,4]-----------------[5,6,7]-[8,9]--|
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debounceTime ^------------------------------------------------------------------------9------|
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sampleTime ^----------------1-----------------------4-----------------------7--------------|
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throttleTime ^0-------------------------------4-------------------------------8--------------|
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*/
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// RxJS v6+
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import { interval, merge } from 'rxjs';
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import { auditTime, bufferTime, debounceTime, sampleTime, throttleTime, tap, take } from 'rxjs/operators';
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const takeValue = 10;
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const intrvl = 1000;
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const time = 3000;
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const intervaled = (operator, operatorName) =>
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interval(intrvl)
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.pipe(
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take(takeValue),
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operator,
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tap(x => console.log(`${operatorName}:${x}`))
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);
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merge(
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interval(intrvl).pipe(take(takeValue), tap(v => console.log(`i: ${v}`))),
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intervaled(auditTime(time), "auditTime"),
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intervaled(bufferTime(time), "bufferTime"),
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intervaled(debounceTime(time), "debounceTime"),
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intervaled(sampleTime(time), "sampleTime"),
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intervaled(throttleTime(time), "throttleTime")
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).subscribe();
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// output
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/*
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i: 0
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throttleTime:0
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i: 1
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i: 2
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bufferTime:0,1
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sampleTime:1
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i: 3
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auditTime:3
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i: 4
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throttleTime:4
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i: 5
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bufferTime:2,3,4
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sampleTime:4
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i: 6
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i: 7
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auditTime:7
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i: 8
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bufferTime:5,6,7
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sampleTime:7
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throttleTime:8
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i: 9
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bufferTime:8,9
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debounceTime:9
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*/
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