manifold/common/util/format.ts
2022-03-25 15:54:15 -07:00

41 lines
1.2 KiB
TypeScript

import { ENV_CONFIG } from '../envs/constants'
const formatter = new Intl.NumberFormat('en-US', {
style: 'currency',
currency: 'USD',
maximumFractionDigits: 0,
minimumFractionDigits: 0,
})
export function formatMoney(amount: number) {
const newAmount = Math.round(amount) === 0 ? 0 : amount // handle -0 case
return (
ENV_CONFIG.moneyMoniker + ' ' + formatter.format(newAmount).replace('$', '')
)
}
export function formatWithCommas(amount: number) {
return formatter.format(amount).replace('$', '')
}
export function formatPercent(zeroToOne: number) {
// Show 1 decimal place if <2% or >98%, giving more resolution on the tails
const decimalPlaces = zeroToOne < 0.02 || zeroToOne > 0.98 ? 1 : 0
return (zeroToOne * 100).toFixed(decimalPlaces) + '%'
}
export function toCamelCase(words: string) {
const camelCase = words
.split(' ')
.map((word) => word.trim())
.filter((word) => word)
.map((word, index) =>
index === 0 ? word : word[0].toLocaleUpperCase() + word.substring(1)
)
.join('')
// Remove non-alpha-numeric-underscore chars.
const regex = /(?:^|\s)(?:[a-z0-9_]+)/gi
return (camelCase.match(regex) || [])[0] ?? ''
}