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move getAverage to util

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This commit is contained in:
Aakansha Doshi 2021-02-07 20:59:09 +05:30
parent 60d3bf1718
commit 85b8050cc5
2 changed files with 8 additions and 5 deletions
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8
src/networkStats.ts
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@ -1,3 +1,5 @@
import { getAverage } from "./utils";
const IMAGE_URL = `${process.env.REACT_APP_SOCKET_SERVER_URL}/test256.png`; const IMAGE_URL = `${process.env.REACT_APP_SOCKET_SERVER_URL}/test256.png`;
const IMAGE_SIZE_BITS = 141978 * 8; const IMAGE_SIZE_BITS = 141978 * 8;
const AVERAGE_MAX = 4; const AVERAGE_MAX = 4;
@ -11,10 +13,6 @@ const pushSpeed = (speed: number): void => {
} }
}; };
const getAverageSpeed = (): number => {
return speedHistory.reduce((a, b) => a + b) / speedHistory.length;
};
const getSpeedBits = ( const getSpeedBits = (
imageSize: number, imageSize: number,
startTime: number, startTime: number,
@ -35,7 +33,7 @@ const processImage = (): Promise<number> => {
endTime = new Date().getTime(); endTime = new Date().getTime();
const speed = getSpeedBits(IMAGE_SIZE_BITS, startTime, endTime); const speed = getSpeedBits(IMAGE_SIZE_BITS, startTime, endTime);
pushSpeed(speed); pushSpeed(speed);
resolve(getAverageSpeed()); resolve(getAverage(speedHistory));
}; };
image.onerror = () => { image.onerror = () => {

5
src/utils.ts
View File

@ -386,6 +386,11 @@ export const formatTime = (mseconds: number): string => {
? `${mseconds} ms` ? `${mseconds} ms`
: `${(mseconds / 1000).toFixed(1)} s`; : `${(mseconds / 1000).toFixed(1)} s`;
}; };
export const getAverage = (arr: Array<number>): number => {
return arr.reduce((sum, currentVal) => sum + currentVal) / arr.length;
};
// Adapted from https://github.com/Modernizr/Modernizr/blob/master/feature-detects/emoji.js // Adapted from https://github.com/Modernizr/Modernizr/blob/master/feature-detects/emoji.js
export const supportsEmoji = () => { export const supportsEmoji = () => {
const canvas = document.createElement("canvas"); const canvas = document.createElement("canvas");