Disqus - Latest Comments for frosas

Re: Using requestAnimationFrame with React - It Works On My Machine

Francesc Rosas — Fri, 11 Aug 2017 03:01:04 -0000

Constantly re-rendering with props/state is slow

Any source for this affirmation?

Re: Save Money on Flights: How We Found $400+ in Savings on Plane Tickets

Francesc Rosas — Tue, 11 Apr 2017 21:00:10 -0000

I just tried it but had no success. Did it work for any of you?

Re: How To Create a Ruby API with Sinatra

Francesc Rosas — Sat, 14 Jan 2017 13:22:51 -0000

Try running this as a quick fix:

document.querySelectorAll('code.hljs').forEach(el => el.innerHTML = el.textContent);

It doesn't fix the spacing but at least it makes it readable.

Re: Streams are arriving on the web, and it's exciting

Francesc Rosas — Thu, 28 Jan 2016 06:24:21 -0000

Very interesting!

The whole standard seems to be applicable to any type of value (instead of only binary data) so I guess it allows one to write in a reactive style (https://en.wikipedia.org/wi... )?

How the proposed Observable (https://github.com/zenparsi... ) compares to this standard? It looks like a superset of it to me.

Re: Using ServiceWorker in Chrome today

Francesc Rosas — Thu, 03 Dec 2015 14:16:27 -0000

https://developer.mozilla.o...

It works like a charm!

Re: Perception creix: ampliem la nostra oficina! - Perception - diseño web Granollers

Francesc Rosas — Sun, 12 Apr 2015 12:23:25 -0000

Amb tot aquest plàstic sembla que aneu a esquarterar algú. Dec haver vist massa Dexter ;)

Quin és l'ETA de les obres? M'encantaria veure com ha quedat!

Re: No app specified: telling Heroku gem what its default --app should be

Francesc Rosas — Sat, 24 Jan 2015 15:52:10 -0000

It seems there's an idiomatic (and shorter) way to do this. From http://stackoverflow.com/qu...


$ heroku git:remote -a your-app-name

Re: Persistence hunting – humans running antelope to death

Francesc Rosas — Thu, 17 Jul 2014 19:53:58 -0000

The linked video is not available anymore, try this instead: https://www.youtube.com/wat...

Re: Promise Anti-patterns

Francesc Rosas — Sat, 22 Feb 2014 14:13:28 -0000

You're definitely right. I just wanted to point this approach has its own downsides too :)

Re: Promise Anti-patterns

Francesc Rosas — Sat, 22 Feb 2014 08:44:38 -0000

I always end up writing ghost promises like this:


Q().then(function() { return asyncCallNeeded ? doSomethingAsync() : 42 })
    .then(function() { doSomethingCool() })

Because you run all your code as thenables, any exception being thrown (by doSomethingAsync(), in the example) will be captured and transformed to a rejected promise.

EDIT: Well, in this case the benefit is not so clear as one can expect for doSomethingAsync() to never throw an exception.

Re: Promise Anti-patterns

Francesc Rosas — Sat, 22 Feb 2014 08:26:51 -0000

Because this way you are in control of how the arguments are being passed.

For example, in the examples of this article there are only 5 cases where you can safely pass the function straightaway (6, if you use bind()).

Re: Should You Run Your Startup Like GitHub?

Francesc Rosas — Tue, 22 Oct 2013 17:12:44 -0000

Don't you think that getting better at their uptime is precisely one of the main priorities among many githubbers right now?

Re: Use the Strategy to avoid the Switch-Case antipattern

Francesc Rosas — Mon, 05 Aug 2013 16:50:28 -0000

Lucky you if you have a great code coverage!

Re: Use the Strategy to avoid the Switch-Case antipattern

Francesc Rosas — Sat, 03 Aug 2013 20:20:30 -0000

Good luck trying to find where logNoticeMessage is being used with a simple grep };-)

Re: AngularJS

Francesc Rosas — Thu, 18 Apr 2013 19:09:15 -0000

Note promises are resolved when accessed:


var context = {promise: $q.when('promise')};
console.log($parse('promise')(context)); // undefined
setTimeout(function() {
    console.log($parse('promise')(context)); // 'promise'
}, 0);

Re: AngularJS

Francesc Rosas — Sat, 06 Apr 2013 13:21:59 -0000

If you pretend to use the resulting promise of then() be sure to return (or throw) something in the callbacks unless you want them to resolve with an undefined value. E.g.:


promise.then(
    function(value) { console.log("Ok"); return value },
    function(reason) { console.log("Error"); throw reason }
).then(...)

Re: APIs are Dead, Long Live APIs

Francesc Rosas — Tue, 12 Mar 2013 16:26:53 -0000

Two things to consider: YAGNI and site terms of use.

Re: git ready » ignoring files

Francesc Rosas — Mon, 28 Jan 2013 07:34:28 -0000

"lib" ignores both, "/lib" only the first one and "/something/lib" the other one

Re: Some Advice for all the JavaScript Semicolon Haters

Francesc Rosas — Fri, 25 Jan 2013 11:12:55 -0000

My mind coding with semicolons: a semicolon finishes a statement, don't insert new lines between return and its returned expression, run JSHint to find missing semicolons.

My mind coding without semicolons: a new line finishes a statement, prefix statements starting with ( or [ with a semicolon.

Having used C, Perl, Java and PHP, semicolons feel natural to me. Having used Ruby and Python, no semicolons also feel natural.

Personally I prefer no semicolons. Less visual clutter, less typing, a similar intellectual cost, not having to rely on other tools and bugs are not that hard to trace.

But in the end consistency along the project matters more than what syntax is better, so I just mimic the styling I see.

Re: Some Advice for all the JavaScript Semicolon Haters

Francesc Rosas — Fri, 25 Jan 2013 10:04:25 -0000

Optional semicolons are there since the beginning of Javascript, what makes you think not using them turns Javascript into something else?

Re: Work with bootstrap, assetic and less

Francesc Rosas — Fri, 18 Jan 2013 10:07:33 -0000

I've found a pair of inconveniences:

If you want to use one of the Bootstrap variables (like @baseFontSize) in another file you can't do this:

{% stylesheets ‘bootstrap.less’ 'main.less' %}

The solution I came up is to import them from a same file:

/* imports.less */ @import "bootstrap.less"; @import "main.less";

and load this file then:

{% stylesheets 'imports.less' %}

It is worst if you want to change these Bootstrap variables. As they are defined in the variables.less referenced from bootstrap.less, one have to either use a custom bootstrap.less or modify the original bootstrap.less like this:

@import "variables.less"; // Modify this for custom colors, font-sizes, etc @import "../../../css/bootstrap-variables.less";

but then you can't use Composer to install Bootstrap for you.

Not sure which is the less ugly solution.

PD: Allowing the use of pre tag in the comments would be great :)

Re: Work with bootstrap, assetic and less

Francesc Rosas — Thu, 17 Jan 2013 23:14:11 -0000

Bootstrap is now in Packagist so we can simply do:

"leafo/lessphp": "~0.3",
"twitter/bootstrap": "~2.2"

in composer.json. Also, specificying the lessphp file is not (longer?) required:

filters:
lessphp:
apply_to: "\.less$"

Re: Why Marissa Mayer Should Acquire IFTTT And Go All In On Yahoo! Pipes

Francesc Rosas — Tue, 16 Oct 2012 02:38:44 -0000

"No such pipe, or this pipe has been deleted"

Re: Why Marissa Mayer Should Acquire IFTTT And Go All In On Yahoo! Pipes

Francesc Rosas — Mon, 15 Oct 2012 20:05:23 -0000

I can't see the point on buying a company relying on such a fragile features https://dev.twitter.com/doc...

Re: HTML5 Rocks - The Basics of Web Workers

Francesc Rosas — Thu, 11 Oct 2012 16:36:30 -0000

Nice post. BTW, there are some references to webkiURL that should be webkitURL.