index.js
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// import parseTime, formatTime and set to filter
export { parseTime, formatTime } from '@/utils'
/**
* Show plural label if time is plural number
* @param {number} time
* @param {string} label
* @return {string}
*/
function pluralize(time, label) {
if (time === 1) {
return time + label
}
return time + label + 's'
}
/**
* @param {number} time
*/
export function timeAgo(time) {
const between = Date.now() / 1000 - Number(time)
if (between < 3600) {
return pluralize(~~(between / 60), ' minute')
} else if (between < 86400) {
return pluralize(~~(between / 3600), ' hour')
} else {
return pluralize(~~(between / 86400), ' day')
}
}
/**
* Number formatting
* like 10000 => 10k
* @param {number} num
* @param {number} digits
*/
export function numberFormatter(num, digits) {
const si = [
{ value: 1E18, symbol: 'E' },
{ value: 1E15, symbol: 'P' },
{ value: 1E12, symbol: 'T' },
{ value: 1E9, symbol: 'G' },
{ value: 1E6, symbol: 'M' },
{ value: 1E3, symbol: 'k' }
]
for (let i = 0; i < si.length; i++) {
if (num >= si[i].value) {
return (num / si[i].value + 0.1).toFixed(digits).replace(/\.0+$|(\.[0-9]*[1-9])0+$/, '$1') + si[i].symbol
}
}
return num.toString()
}
/**
* 10000 => "10,000"
* @param {number} num
*/
export function toThousandFilter(num) {
return (+num || 0).toString().replace(/^-?\d+/g, m => m.replace(/(?=(?!\b)(\d{3})+$)/g, ','))
}