75 lines
2.4 KiB
JavaScript
75 lines
2.4 KiB
JavaScript
export const BYTES_UNITS = ['Bytes', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB'];
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export const HERTZ_UNITS = ['Hz', 'KHz', 'MHz', 'GHz', 'THz', 'PHz'];
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const locale = window.navigator.locale || 'en';
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const decimalFormatter = new Intl.NumberFormat(locale, {
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maximumFractionDigits: 2,
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});
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const roundFormatter = new Intl.NumberFormat(locale, {
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maximumFractionDigits: 0,
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});
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const unitReducer = (number = 0, interval, units, maxUnit, startingUnit) => {
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if (startingUnit && units.indexOf(startingUnit) !== -1) {
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units = units.slice(units.indexOf(startingUnit));
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}
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if (maxUnit && units.indexOf(maxUnit) !== -1) {
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units = units.slice(0, units.indexOf(maxUnit) + 1);
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}
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// Reduce negative numbers by temporarily flipping them positive.
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const negative = number < 0;
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if (negative) {
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number *= -1;
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}
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let unitIndex = 0;
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while (number >= interval && unitIndex < units.length - 1) {
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number /= interval;
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unitIndex++;
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}
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if (negative) {
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number *= -1;
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}
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return [number, units[unitIndex]];
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};
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export function reduceBytes(bytes = 0, maxUnitSize, startingUnitSize) {
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return unitReducer(bytes, 1024, BYTES_UNITS, maxUnitSize, startingUnitSize);
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}
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export function reduceHertz(hertz = 0, maxUnitSize, startingUnitSize) {
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return unitReducer(hertz, 1000, HERTZ_UNITS, maxUnitSize, startingUnitSize);
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}
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// General purpose formatters meant to reduce units as much
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// as possible.
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export function formatBytes(bytes, startingUnitSize) {
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const [number, unit] = reduceBytes(bytes, null, startingUnitSize);
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return `${decimalFormatter.format(number)} ${unit}`;
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}
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export function formatHertz(hertz, startingUnitSize) {
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const [number, unit] = reduceHertz(hertz, null, startingUnitSize);
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return `${decimalFormatter.format(number)} ${unit}`;
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}
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// Specialized formatters meant to reduce units to the resolution
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// the scheduler and job specs operate at.
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export function formatScheduledBytes(bytes, startingUnitSize) {
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const [number, unit] = reduceBytes(bytes, 'MiB', startingUnitSize);
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return `${roundFormatter.format(number)} ${unit}`;
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}
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export function formatScheduledHertz(hertz, startingUnitSize) {
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const [number, unit] = reduceHertz(hertz, 'MHz', startingUnitSize);
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return `${roundFormatter.format(number)} ${unit}`;
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}
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// Replaces the minus sign (−) with a hyphen (-).
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// https://github.com/d3/d3-format/releases/tag/v2.0.0
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export function replaceMinus(input) {
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return input.replace('−', '-');
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}
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