sjs/strftime
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Sami Samhuri 2015-02-07 19:36:10 -08:00
parent f1581a3c9d
commit 6ab81c89cb
1 changed files with 13 additions and 11 deletions
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strftime.js
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@ -87,35 +87,36 @@
_customTimezoneOffset = customTimezoneOffset || 0, _customTimezoneOffset = customTimezoneOffset || 0,
_useUtcBasedDate = useUtcTimezone || false, _useUtcBasedDate = useUtcTimezone || false,
// we store unix timestamp value here to not create new Date() each iteration (each millisecond) // we store unix timestamp value here to not create new Date() each iteration (each millisecond)
// Date.now() is 2 times faster than new Date() // Date.now() is 2 times faster than new Date()
// while millisecond precise is enough here // while millisecond precise is enough here
// this could be very helpful when strftime triggered a lot of times one by one // this could be very helpful when strftime triggered a lot of times one by one
_cachedDateTimestamp = 0, _cachedDateTimestamp = 0,
_cachedDate; _cachedDate;
function _strftime(format, date) { function _strftime(format, date) {
var timestamp; var timestamp;
if(!date) { if (!date) {
var currentTimestamp = Date.now(); var currentTimestamp = Date.now();
if(currentTimestamp > _cachedDateTimestamp) { if (currentTimestamp > _cachedDateTimestamp) {
_cachedDateTimestamp = currentTimestamp; _cachedDateTimestamp = currentTimestamp;
_cachedDate = new Date(_cachedDateTimestamp); _cachedDate = new Date(_cachedDateTimestamp);
timestamp = _cachedDateTimestamp; timestamp = _cachedDateTimestamp;
if(_useUtcBasedDate) { if (_useUtcBasedDate) {
// how to avoid duplication of date instantiation for utc here? // how to avoid duplication of date instantiation for utc here?
// we tied to getTimezoneOffset of the current date // we tied to getTimezoneOffset of the current date
_cachedDate = new Date(_cachedDateTimestamp + getTimestampToUtcOffsetFor(_cachedDate) + _customTimezoneOffset); _cachedDate = new Date(_cachedDateTimestamp + getTimestampToUtcOffsetFor(_cachedDate) + _customTimezoneOffset);
} }
} }
date = _cachedDate; date = _cachedDate;
} else { }
else {
timestamp = date.getTime(); timestamp = date.getTime();
if(_useUtcBasedDate) { if (_useUtcBasedDate) {
date = new Date(date.getTime() + getTimestampToUtcOffsetFor(date) + _customTimezoneOffset); date = new Date(date.getTime() + getTimestampToUtcOffsetFor(date) + _customTimezoneOffset);
} }
} }
@ -133,7 +134,7 @@
var currentCharCode = format.charCodeAt(i); var currentCharCode = format.charCodeAt(i);
if(isInScope === true) { if (isInScope === true) {
// '-' // '-'
if (currentCharCode === 45) { if (currentCharCode === 45) {
padding = ''; padding = '';
@ -442,7 +443,8 @@
customTimezoneOffset = sign * ((60 * hours) + minutes) * 60 * 1000; customTimezoneOffset = sign * ((60 * hours) + minutes) * 60 * 1000;
// in minutes: 420 // in minutes: 420
} else if (timezoneType === 'number'){ }
else if (timezoneType === 'number') {
customTimezoneOffset = timezone * 60 * 1000; customTimezoneOffset = timezone * 60 * 1000;
} }
} }