This is cool, would love to see an npm package for this!

VirtualDJ[0] software lets you do this with their Stems feature in real time and works really well, and it's free I believe.

[0] https://www.virtualdj.com/

SolarNet what makes you think it's based on js

Solidity is a contract-oriented, high-level language whose syntax is similar to that of JavaScript and it is designed to target the Ethereum Virtual Machine (EVM).

http://solidity.readthedocs.io/en/develop/

Syntax being similar is not the same as being based on it.

For only one specific interpretation of "based on".

My guess is it uses geolocation APIs to match city to politicians in your district. Maybe even looks up politicians phone numbers by area codes that belong to those cities. This is just a theory of course.

Yep, those are the main sites. We only bought bycontrast.co at the weekend, need to setup a redirect there! :)

Would this be a bad thing in the scenario one browser didn't implement the property properly? The webkit implementation could work fine but look awful on IE for example, which then you would simply not include it in IE.

Not really, because the features need to be explicitly enabled. Nobody will use these in production if it requires a user to change a setting in their browser for it to work.

Potentially yes, this is why prefixes were created. But in practice I haven't run into any issues like this since the IE6 days.

Even better!

     ifThen(1 === 0, 5)

No need to calculate 2 + 3!

False. You did the arithmetic in stead of the computer, this is more work.

and if instead of addition it was a function call...

Can you tell me a use case using the "action" that's sent to "request.run", or is it passed just because it can be.

https://github.com/mozilla/gecko-dev/blob/master/devtools/cl...

If you are waiting for a "done" async action (which is usually the case if using this), you might want the action to inspect the value that it was resolved with. We use this in tests: https://github.com/mozilla/gecko-dev/blob/master/devtools/cl...

Tests can wait for an action to be dispatched and the promise is resolved with that action, and tests can inspect it.

You probably do not want to store a promise in state, it's not really serializable

Awesome and hilarious article. Id just like to note `for (;;);` is not to prevent users from using bad JSON parsers like `eval` but prevent older browsers with little to no cross domain policy from loading it with a script tag and doing evil XSS by overriding Array or Object constructors or prototypes to pull that data

Good point. Minor nitpick: I believe this is called CSRF, not XSS? But Im just repeating stackoverflow comments at this point.

No, CSRF (cross-site request forgery) is where a page tricks your browser into making requests to another domain in which you're already authenticated, in order to perform some kind of action. e.g. an img or script with a src "http://example.com/message.php?message=you+are+hax0red&s.... You can sometimes perform similar tricks with self-submitting hidden forms, or XHR. Quite easy to mitigate using nonces and referrer checking.

But.. that's exactly what while(1); and friends in json responses protect you against? someone overriding the Array constructor function and including your JSON resource from a <script src=…> ? So this is, in fact, CSRF?

No, CSRF isn't about pulling scripts etc from another site, it's tricking the browser into making malicious HTTP requests. So, it's not trying to grab facebook .com/someinterestingdata.json, it's trying to trick your browser into performing actions on the target domain by making it perform GET or POST requests such as sending Facebook spam. It doesn't matter what the response is, it's just interested in the action. A while(1) won't do much if it's inside an img tag or hidden iframe rather than a script tag.