const camelizeRE = /-(\w)/g export function camelize (str) { str = String(str) return str.replace(camelizeRE, function (m, c) { return c ? c.toUpperCase() : '' }) }
export function kebab (str) { str = String(str) return str.replace(/([A-Z])/g, '-$1').toLowerCase() }                               const DAY_TIMESTAMP = 60 * 60 * 24 * 1000 const HOUR_TIMESTAMP = 60 * 60 * 1000 const MINUTE_TIMESTAMP = 60 * 1000
function formatType(type, format, value, regExpAttributes) { const regExpMap = { year: '(Y+)', month: '(M+)', date: '(D+)', hour: '(h+)', minute: '(m+)', second: '(s+)', quarter: '(q+)', millisecond: '(S)' }
if (new RegExp(regExpMap[type], regExpAttributes).test(format)) { const replaceStr = type === 'year' ? value.toString().substr(4 - RegExp.$1.length) : (RegExp.$1.length === 1) ? value : pad(value) format = format.replace(RegExp.$1, replaceStr) }
return format }
function pad(value) { return ('00' + value).substr(('' + value).length) }
function formatDate(date, format) { const map = { year: { value: date.getFullYear(), regExpAttributes: 'i' }, month: { value: date.getMonth() + 1 }, date: { value: date.getDate(), regExpAttributes: 'i' }, hour: { value: date.getHours(), regExpAttributes: 'i' }, minute: { value: date.getMinutes() }, second: { value: date.getSeconds() }, quarter: { value: Math.floor((date.getMonth() + 3) / 3), regExpAttributes: 'i' }, millisecond: { value: date.getMilliseconds() } }
for (const key in map) { format = formatType(key, format, map[key].value, map[key].regExpAttributes) }
return format }
function getZeroStamp(date) { const year = date.getFullYear() const month = date.getMonth() + 1 const day = date.getDate() return +new Date(year + '/' + month + '/' + day + ' 00:00:00') }
function getDayDiff(date1, date2) { return Math.floor((getZeroStamp(date1) - getZeroStamp(date2)) / DAY_TIMESTAMP) }
function getNow() { return window.performance && window.performance.now ? (window.performance.now() + window.performance.timing.navigationStart) : +new Date() }
function computeNatureMaxDay(month, year) { let natureMaxDay = 30 if ([1, 3, 5, 7, 8, 10, 12].indexOf(month) > -1) { natureMaxDay = 31 } else { if (month === 2) { natureMaxDay = !year || (!(year % 400) || (!(year % 4) && year % 100)) ? 29 : 28 } }
return natureMaxDay }
export { DAY_TIMESTAMP, HOUR_TIMESTAMP, MINUTE_TIMESTAMP, pad, formatType, formatDate, getZeroStamp, getDayDiff, getNow, computeNatureMaxDay }
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