82 lines
2.1 KiB
JavaScript
82 lines
2.1 KiB
JavaScript
import { BYTES_IN_KIB } from './constants';
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/**
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* Function that allows a number with an X amount of decimals
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* to be formatted in the following fashion:
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* * For 1 digit to the left of the decimal point and X digits to the right of it
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* * * Show 3 digits to the right
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* * For 2 digits to the left of the decimal point and X digits to the right of it
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* * * Show 2 digits to the right
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*/
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export function formatRelevantDigits(number) {
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let digitsLeft = '';
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let relevantDigits = 0;
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let formattedNumber = '';
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if (!Number.isNaN(Number(number))) {
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[digitsLeft] = number.toString().split('.');
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switch (digitsLeft.length) {
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case 1:
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relevantDigits = 3;
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break;
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case 2:
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relevantDigits = 2;
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break;
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case 3:
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relevantDigits = 1;
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break;
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default:
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relevantDigits = 4;
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break;
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}
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formattedNumber = Number(number).toFixed(relevantDigits);
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}
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return formattedNumber;
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}
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/**
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* Utility function that calculates KiB of the given bytes.
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*
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* @param {Number} number bytes
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* @return {Number} KiB
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*/
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export function bytesToKiB(number) {
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return number / BYTES_IN_KIB;
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}
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/**
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* Utility function that calculates MiB of the given bytes.
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*
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* @param {Number} number bytes
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* @return {Number} MiB
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*/
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export function bytesToMiB(number) {
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return number / (BYTES_IN_KIB * BYTES_IN_KIB);
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}
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/**
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* Utility function that calculates GiB of the given bytes.
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* @param {Number} number
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* @returns {Number}
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*/
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export function bytesToGiB(number) {
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return number / (BYTES_IN_KIB * BYTES_IN_KIB * BYTES_IN_KIB);
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}
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/**
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* Port of rails number_to_human_size
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* Formats the bytes in number into a more understandable
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* representation (e.g., giving it 1500 yields 1.5 KB).
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*
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* @param {Number} size
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* @returns {String}
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*/
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export function numberToHumanSize(size) {
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if (size < BYTES_IN_KIB) {
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return `${size} bytes`;
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} else if (size < BYTES_IN_KIB * BYTES_IN_KIB) {
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return `${bytesToKiB(size).toFixed(2)} KiB`;
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} else if (size < BYTES_IN_KIB * BYTES_IN_KIB * BYTES_IN_KIB) {
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return `${bytesToMiB(size).toFixed(2)} MiB`;
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}
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return `${bytesToGiB(size).toFixed(2)} GiB`;
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}
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