83 lines
2.5 KiB
Markdown
83 lines
2.5 KiB
Markdown
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# dateformat
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A node.js package for Steven Levithan's excellent [dateFormat()][dateformat] function.
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[](https://travis-ci.org/felixge/node-dateformat)
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## Modifications
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* Removed the `Date.prototype.format` method. Sorry folks, but extending native prototypes is for suckers.
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* Added a `module.exports = dateFormat;` statement at the bottom
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* Added the placeholder `N` to get the ISO 8601 numeric representation of the day of the week
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## Installation
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```bash
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$ npm install dateformat
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$ dateformat --help
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```
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## Usage
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As taken from Steven's post, modified to match the Modifications listed above:
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```js
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var dateFormat = require('dateformat');
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var now = new Date();
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// Basic usage
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dateFormat(now, "dddd, mmmm dS, yyyy, h:MM:ss TT");
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// Saturday, June 9th, 2007, 5:46:21 PM
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// You can use one of several named masks
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dateFormat(now, "isoDateTime");
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// 2007-06-09T17:46:21
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// ...Or add your own
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dateFormat.masks.hammerTime = 'HH:MM! "Can\'t touch this!"';
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dateFormat(now, "hammerTime");
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// 17:46! Can't touch this!
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// When using the standalone dateFormat function,
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// you can also provide the date as a string
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dateFormat("Jun 9 2007", "fullDate");
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// Saturday, June 9, 2007
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// Note that if you don't include the mask argument,
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// dateFormat.masks.default is used
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dateFormat(now);
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// Sat Jun 09 2007 17:46:21
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// And if you don't include the date argument,
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// the current date and time is used
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dateFormat();
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// Sat Jun 09 2007 17:46:22
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// You can also skip the date argument (as long as your mask doesn't
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// contain any numbers), in which case the current date/time is used
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dateFormat("longTime");
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// 5:46:22 PM EST
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// And finally, you can convert local time to UTC time. Simply pass in
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// true as an additional argument (no argument skipping allowed in this case):
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dateFormat(now, "longTime", true);
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// 10:46:21 PM UTC
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// ...Or add the prefix "UTC:" or "GMT:" to your mask.
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dateFormat(now, "UTC:h:MM:ss TT Z");
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// 10:46:21 PM UTC
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// You can also get the ISO 8601 week of the year:
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dateFormat(now, "W");
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// 42
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// and also get the ISO 8601 numeric representation of the day of the week:
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dateFormat(now,"N");
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// 6
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```
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## License
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(c) 2007-2009 Steven Levithan [stevenlevithan.com][stevenlevithan], MIT license.
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[dateformat]: http://blog.stevenlevithan.com/archives/date-time-format
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[stevenlevithan]: http://stevenlevithan.com/
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