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reduce once instead of thrice

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This commit is contained in:
MrTuxedo 2023-04-21 16:43:04 -07:00
parent d28cc9b3f7
commit f64fbfb71d
1 changed files with 11 additions and 7 deletions
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18
src/blockchain.ts
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@ -34,14 +34,18 @@ const blockGasPricesObservable = new Observable<GasPrices>((observer) => {
const averageGasPricesObservable = blockGasPricesObservable.pipe(
scan((acc, curr) => [...acc.slice(-19), curr], [] as GasPrices[]),
map((blocks) => {
const fastSum = blocks.reduce((sum, block) => sum + block.fast, 0);
const averageSum = blocks.reduce((sum, block) => sum + block.average, 0);
const slowSum = blocks.reduce((sum, block) => sum + block.slow, 0);
const { fast, average, slow } = blocks
.reduce((sum, block) =>
({
fast: sum.fast + block.fast,
average: sum.average + block.average,
slow: sum.slow + block.slow
}), { fast: 0, average: 0, slow: 0 } as GasPrices);
return {
fast: Math.round(fastSum / blocks.length),
average: Math.round(averageSum / blocks.length),
slow: Math.round(slowSum / blocks.length),
};
fast: Math.round(fast / blocks.length),
average: Math.round(average / blocks.length),
slow: Math.round(slow / blocks.length),
} as GasPrices;
})
);