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Emulate mobile devices directly through DevTools, simulating touch events, mimicking screen size, and spoofing user agent. Plug in a mobile device over USB and use Chrome DevTools on the actual mobile browser. Push your local site to the mobile device with port forwarding.

jednoducho a zrozumitelne vysvetlene ako pisat html+css+js tak aby browser rendroval obsah co najrychlejsie

personally think that developers shouldn't care about code beauty, because that's not their job. Instead, they should focus on creating great products, which is infinitely more satisfying. Code Fashion What defines beauty in code? Just like for clothes, opinions on the subject may vary. Each year, we find new trend-setters, like Jeff Atwood, Martin Fowler, or Eric Evans. They offer convincing arguments to explain why pattern A is better than pattern B. Until someone else publishes a book, explaining that pattern C is much, much better

out of 5 dentists agree that multi-threaded programming is hard to get right. At the end of the day, all that the GIL guarantees is that MRI's native C implementations of Ruby methods will be executed atomically (but even this has caveats). ... So the GIL doesn't 'solve' thread-safety issues. ... One way that we work with hard problems is with good abstractions. ... We're seeing more and more abstractions around threads. An approach that's catching on in the Ruby community is the Actor model of concurrency, with the most popular implementation being Celluloid. Celluloid provides a great abstraction that marries concurrency primitives to Ruby's object model. Celluloid can't guarantee that your code will be thread-safe or free from race conditions, but it wraps up best practices. I encourage you give Celluloid a try.

paradny writeup use caseov, kedy je vhodne pouzit sqlite DB

PostgreSQL is an open source multi-purpose relational database system which is widely used throughout the world. It is one huge system with the integrated subsystems, each of which has a particular complex feature and works with each other cooperatively. Although understanding of the internal mechanism is crucial for both administration and integration using PostgreSQL, its hugeness and complexity prevent it.

Brutalna stranka obsahujuca kopec infogragik, linkov, toolov, slideov ohladom performance monitoring a tuning na Linuxe

Web/app projects these days often have many distributed parts. It's not uncommon for groups to use the right tool for the job. The right tools are often something like the choice below. Redis for queuing, and caching. Elastic Search for searching, and log stash. Influxdb or RRD for timeseries. S3 for an object store. PostgreSQL for relational data with constraints, and validation via schemas. Celery for job queues. Kafka for a buffer of queues or stream processing. Exception logging with PostgreSQL (perhaps using Sentry) KDB for low latency analytics on your column oriented data. Mongo/ZODB for storing documents JSON (or mangodb for /dev/null replacement) SQLite for embedded. Neo4j for graph databases. RethinkDB for your realtime data, when data changes, other parts 'react'. ... For all the different nodes this could easily cost thousands a month, require lots of ops knowledge and support, and use up lots of electricity. To set all this up from scratch could cost one to four weeks of developer time depending on if they know the various stacks already. Perhaps you'd have ten nodes to support. Could you gain an ops advantage by using only PostgreSQL?

I was playing a bit with OrientDB because the licensing model is not that pricey as for Neo4j. Anyway, after having really bad experience (http://orientdbleaks.blogspot.com/) I returned back to CouchDB, although it's not a graph db. But while I was searching for more data, I found this: http://www.aptuz.com/blog/is-postgres-nosql-database-better-than-mongodb/ and this: https://www.arangodb.com/2015/10/benchmark-postgresql-mongodb-arangodb/ so I'm pondering with an idea to give postgres(no)sql a chance :)

Father Zosime claims that the electronic ID cards signal the second coming of Christ. He also believes that using a barcode for products purchased in the supermarket is a sign of the coming apocalypse. If the electronic ID cards are abolished, this group of religious representatives also plans to demand that Georgians no longer use the personal numbers on their IDs, or any identification number at all.

K šperkom či dôležitým listinám v bezpečnostných schránkach sa môžu klienti bratislavskej pobočky ČSOB na Námestí SNP dostať aj pomocou odtlačku prsta.

Vojaci obvykle používajú biometrické zariadenie, ktorým snímajú odtlačky prstov a očné dúhovky. Zariadenie však nemali vtedy k dispozícii, a tak údajne odsekli jednému z usmrtených ruky, aby nemuseli prevážať jeho telo na základňu Tarín Kót v provincii Uruzgán.

zabavne citanie ako motorola dodala kriminalny afis a nedokazala splnit poziadavky na rychlost, presnost a este to musia dost casto restartovat

Pouzitelny pri volani vzdialenych procesov a sluzieb (cez siet), ktore mozu dostat timeout alebo inak zlyhat.

Elegantny sposob ako definovat a volat custom callbacks

I'm not going to be talking about the third step of the TDD cycle. Refactoring code that's in development and not currently running on production is something you must absolutely do. Work clean, and write clean code. What we're talking about is changes to existing, running code.

pekny postup ako ziskat kontrolu nad linuxom ktory bezi na wifi sd karte (cez webserver ktory bezi na sd karte)