analytics/assets/js/dashboard/util/number-formatter.ts

81 lines
2.2 KiB
TypeScript

const THOUSAND = 1000
const HUNDRED_THOUSAND = 100000
const MILLION = 1000000
const HUNDRED_MILLION = 100000000
const BILLION = 1000000000
const HUNDRED_BILLION = 100000000000
const TRILLION = 1000000000000
const numberFormat = Intl.NumberFormat('en-US')
export function numberShortFormatter(num: number): string {
if (num >= THOUSAND && num < MILLION) {
const thousands = num / THOUSAND
if (thousands === Math.floor(thousands) || num >= HUNDRED_THOUSAND) {
return Math.floor(thousands) + 'k'
} else {
return Math.floor(thousands * 10) / 10 + 'k'
}
} else if (num >= MILLION && num < BILLION) {
const millions = num / MILLION
if (millions === Math.floor(millions) || num >= HUNDRED_MILLION) {
return Math.floor(millions) + 'M'
} else {
return Math.floor(millions * 10) / 10 + 'M'
}
} else if (num >= BILLION && num < TRILLION) {
const billions = num / BILLION
if (billions === Math.floor(billions) || num >= HUNDRED_BILLION) {
return Math.floor(billions) + 'B'
} else {
return Math.floor(billions * 10) / 10 + 'B'
}
} else {
return num.toString()
}
}
export function numberLongFormatter(num: number): string {
return numberFormat.format(num)
}
export function nullable<T>(
formatter: (num: T) => string
): (num: T | null) => string {
return (num: T | null): string => {
if (num === null) {
return '-'
}
return formatter(num)
}
}
function pad(num: number, size: number): string {
return ('000' + num).slice(size * -1)
}
export function durationFormatter(duration: number): string {
const hours = Math.floor(duration / 60 / 60)
const minutes = Math.floor(duration / 60) % 60
const seconds = Math.floor(duration - minutes * 60 - hours * 60 * 60)
if (hours > 0) {
return `${hours}h ${minutes}m ${seconds}s`
} else if (minutes > 0) {
return `${minutes}m ${pad(seconds, 2)}s`
} else {
return `${seconds}s`
}
}
export function percentageFormatter(number: number | null): string {
if (typeof number === 'number') {
if (Math.abs(number) > 0 && Math.abs(number) < 0.1) {
return number.toFixed(2) + '%'
} else {
return number.toFixed(1).replace(/\.0$/, '') + '%'
}
} else {
return '-'
}
}