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Created June 20, 2011 16:25
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Date.now polyfill for 140byt.es
Raw
README.md

Date.now polyfill for 140byt.es

This function will provided the ECMAScript 5 method of Date.now to browsers that do not support ECMAScript 5.

Raw
annotated.js
Date.now || // Use the native Date.now method if available,
(Date.now = function () { // Otherwise defined it here:
return +new Date // Create a new Date object and return the Unix timestamp epoch.
})
Raw
index.js
Date.now||(Date.now=function(){return+new Date})
Raw
LICENSE.txt
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2011 Eli Perelman http://eliperelman.com
Everyone is permitted to copy and distribute verbatim or modified
copies of this license document, and changing it is allowed as long
as the name is changed.
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. You just DO WHAT THE FUCK YOU WANT TO.
Raw
package.json
{
"name": "DateNowPolyfillFor140bytes",
"description": "ECMAScript 5 polyfill for Date.now method",
"keywords": [
"Date",
"now",
"polyfill",
"JavaScript",
"ECMAScript5"
]
}
Raw
test.html
<!DOCTYPE html>
<title>Date.now polyfill for ECMAScript 5</title>
<script>
Date.now||(Date.now=function(){return+new Date})
console.log(Date.now()); // logs current Unix time.
</script>
@jed
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jed commented Jun 20, 2011

you don't need that trailing semicolon. it can only serve to anger @isaacs.

@eliperelman
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Author

Ah good catch, I was letting my best practices get to me ;)

@ErnWong
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ErnWong commented Dec 8, 2012

Maybe I'm wrong, but according to the results of http://jsperf.com/date-gettime-vs-date-now/3 (new Date()).getTime() is faster than +new Date (although it uses more space)

@yckart
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yckart commented Feb 27, 2013

Bigger, but better:

Date.now=Date.now||function(){return new Date().getTime()}

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