aaac7fed
 liuqimichale
add
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# Overview
Adds support for the `timers` module to browserify.
## Wait, isn't it already supported in the browser?
The public methods of the `timers` module are:
* `setTimeout(callback, delay, [arg], [...])`
* `clearTimeout(timeoutId)`
* `setInterval(callback, delay, [arg], [...])`
* `clearInterval(intervalId)`
and indeed, browsers support these already.
## So, why does this exist?
The `timers` module also includes some private methods used in other built-in
Node.js modules:
* `enroll(item, delay)`
* `unenroll(item)`
* `active(item)`
These are used to efficiently support a large quantity of timers with the same
timeouts by creating only a few timers under the covers.
Node.js also offers the `immediate` APIs, which aren't yet available cross-browser, so we polyfill those:
* `setImmediate(callback, [arg], [...])`
* `clearImmediate(immediateId)`
## I need lots of timers and want to use linked list timers as Node.js does.
Linked lists are efficient when you have thousands (millions?) of timers with the same delay.
Take a look at [timers-browserify-full](https://www.npmjs.com/package/timers-browserify-full) in this case.
# License
[MIT](http://jryans.mit-license.org/)
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