Kendime not olsun mutlaka izleyim sunumları diye listeliyorum. Siz de bir göz atın.
Tuesday, April 29, 2014
Kod.io 2014 sunum videoları listesi
Kendime not olsun mutlaka izleyim sunumları diye listeliyorum. Siz de bir göz atın.
Labels:
burak yiğit kaya,
Joshua Balanco,
kod.io,
Mikael Konutgan,
mustwatch,
sunum,
video
Monday, April 28, 2014
Friday, April 25, 2014
baudio by @substack
Eğer takip etmiyorsanız @substack takip edilecek kişilerdendir.
Javascript ile müzik yapmak için geliştirilmiş çok sevdiğim şu paketin de geliştiricisi : baudio
Yarım saatlik şu videosunu da izlerseniz bu paket hakkında daha çok fikre sahip olursunuz.
Baudio ile muzik yapmak javascript geliştiriciler için çok daha eğlenceli :)
Örnek :
Javascript ile müzik yapmak için geliştirilmiş çok sevdiğim şu paketin de geliştiricisi : baudio
Yarım saatlik şu videosunu da izlerseniz bu paket hakkında daha çok fikre sahip olursunuz.
Baudio ile muzik yapmak javascript geliştiriciler için çok daha eğlenceli :)
Örnek :
var baudio = require('baudio');
var n = 0;
var b = baudio(function (t) {
var x = Math.sin(t * 262 + Math.sin(n));
n += Math.sin(t);
return x;
});
b.play();
generate audio streams with functions with baudio npm package. Super Easy. http://t.co/y6I8AWax74
— Hasan Tayyar BEŞİK (@htayyar) April 25, 2014
Saturday, April 19, 2014
Hroute.js
Tiny helper to catch hash changes
Demo : http://jsfiddle.net/hasantayyar/Wq7PC/2/embedded/result/
hroute({
'': function(){
content.innerHTML = "default page";
},
'about': function(){
content.innerHTML = "about page";
},
'^video\/(.*)': function(params){
content.innerHTML = '<iframe width="100%" height="315" '+
'src="https://www.youtube.com/embed/'+params[1]+
'" frameborder="0" allowfullscreen></iframe>';
}
},{
default: function(){
console.log("404/notfound/default action");
},
beforeAction: function(){
console.log("before action");
}
});
Tuesday, April 15, 2014
Yalan api
Sizler için yalan üreteci http://t.co/jsfoAmMrua
— Hasan Tayyar BEŞİK (@htayyar) April 3, 2014
http://yalan.herokuapp.com/Üstelik Api'si de mevcut.
$ curl http://yalan.herokuapp.com/json
{
"lie": "Stajyer herşeyi bozmuş!"
}
Ayrıca bana daha fazla yalan lazım. Şurdan iletirseniz.
https://github.com/hasantayyar/yalan/issues
Monday, April 7, 2014
Turkey Internet Map
Alexa verileriyle her ay güncellediğim http://turkey-internet.herokuapp.com/
Github'da : https://github.com/hasantayyar/turkey-internet
Maintenance page redirection with htaccess
RewriteCond %{DOCUMENT_ROOT}/maintenance.html -f
RewriteCond %{SCRIPT_FILENAME} !maintenance.html
RewriteRule ^.*$ /maintenance.html [R=503,L]
ErrorDocument 503 /maintenance.html When you want to disable maintenance mode just remname maintenance file to something else
mv maintenance.html maintenance.html.disabled"
Gist with sample maintenance page :
Wednesday, April 2, 2014
Symfony forms disable csrf protection
Şöyle iki şekilde yapılabilir.
İlki formu olustururken, ikincisi de kökten çözüm EntityFormType içine yazarak. İkincisini yaparsanız ilgili tüm form kullanımlarında csrf olayını kapatmış oluyorsunuz.
Friday, February 28, 2014
#mongodb kill slow operations
home dizininizde tıpkı .vimrc gibi .mongorc olacak. Bu "mongo" konsolu her açıldığında çalışır tıpkı .vimrc'nin vim her açıldığında çalışması için.
.mongorc içine custom fonksiyonlar yazabilirsiniz. Bu da bir acil durum komutu killzombie(). 2 saniyeden fazla süren işlemleri öldürüyor. Dikkatli kullannakta fayda var :)
killzombie.js :
http://blog.mongolab.com/2014/02/mongodb-currentop-killop/
.mongorc içine custom fonksiyonlar yazabilirsiniz. Bu da bir acil durum komutu killzombie(). 2 saniyeden fazla süren işlemleri öldürüyor. Dikkatli kullannakta fayda var :)
killzombie.js :
http://blog.mongolab.com/2014/02/mongodb-currentop-killop/
Monday, February 24, 2014
Tuesday, February 18, 2014
Rainy?
http://rainy-today.appspot.com sadece şuanda yağmurlu mu değil mi onu söyler. Tek hedef kitlesi pencereden bakmaya üşenenler (veya bodrumda çalışanlar)
Duruma uygun şarkılar seçin - songs-for app
Aslında benim kendim için bir youtube müzik bookmark servisi olarka düşünmüştüm.
Ama herkesin kullanmasında sakınca yok.
https://songs-for.herokuapp.com
Kaynak : https://github.com/hasantayyar/songs-for
Ama herkesin kullanmasında sakınca yok.
https://songs-for.herokuapp.com
Kaynak : https://github.com/hasantayyar/songs-for
Wednesday, January 22, 2014
NoSQL vs. SQL Summary
| SQL Databases | NoSQL Databases | |
|---|---|---|
| Types | One type (SQL database) with minor variations | Many different types including key-value stores, document databases, wide-column stores, and graph databases |
| Development History | Developed in 1970s to deal with first wave of data storage applications | Developed in 2000s to deal with limitations of SQL databases, particularly concerning scale, replication and unstructured data storage |
| Examples | MySQL, Postgres, Oracle Database | MongoDB, Cassandra, HBase, Neo4j |
| Data Storage Model | Individual records (e.g., "employees") are stored as rows in tables, with each column storing a specific piece of data about that record (e.g., "manager," "date hired," etc.), much like a spreadsheet. Separate data types are stored in separate tables, and then joined together when more complex queries are executed. For example, "offices" might be stored in one table, and "employees" in another. When a user wants to find the work address of an employee, the database engine joins the "employee" and "office" tables together to get all the information necessary. | Varies based on database type. For example, key-value stores function similarly to SQL databases, but have only two columns ("key" and "value"), with more complex information sometimes stored within the "value" columns. Document databases do away with the table-and-row model altogether, storing all relevant data together in single "document" in JSON, XML, or another format, which can nest values hierarchically. |
| Schemas | Structure and data types are fixed in advance. To store information about a new data item, the entire database must be altered, during which time the database must be taken offline. | Typically dynamic. Records can add new information on the fly, and unlike SQL table rows, dissimilar data can be stored together as necessary. For some databases (e.g., wide-column stores), it is somewhat more challenging to add new fields dynamically. |
| Scaling | Vertically, meaning a single server must be made increasingly powerful in order to deal with increased demand. It is possible to spread SQL databases over many servers, but significant additional engineering is generally required. | Horizontally, meaning that to add capacity, a database administrator can simply add more commodity servers or cloud instances. The database automatically spreads data across servers as necessary |
| Development Model | Mix of open-source (e.g., Postgres, MySQL) and closed source (e.g., Oracle Database) | Open-source |
| Supports Transactions | Yes, updates can be configured to complete entirely or not at all | In certain circumstances and at certain levels (e.g., document level vs. database level) |
| Data Manipulation | Specific language using Select, Insert, and Update statements, e.g. SELECT fields FROM table WHERE… | Through object-oriented APIs |
| Consistency | Can be configured for strong consistency | Depends on product. Some provide strong consistency (e.g., MongoDB) whereas others offer eventual consistency (e.g., Cassandra) |
Tuesday, December 3, 2013
Friday, November 22, 2013
console.table
tabular veri veya benzer duzenli verileri isledigimiz uygulamarda debugging amacli console.log yerine console.table kullanmak daha mantikli azizim.
Bunu da bugun ogrenmem buyuk kayip.
Mesela verimiz
console.log(data) su ciktiyi veriri consola :
Bunu da surdan okudum az evvel.
Bunu da bugun ogrenmem buyuk kayip.
Mesela verimiz
var data = [
{"name":"Bob Dylan","date":"1977-10-01"},
{"name":"Janis Joplin","date":"1978-03-01"}
];
console.log(data) su ciktiyi veriri consola :
Ama console.table(data) dersem :
Bunu da surdan okudum az evvel.
Monday, November 4, 2013
The first GraphGist Challenge completed
GraphGist Challenge'dan guzel ornekler
- Holiday Resorts by Raju Rama Krishna
- Sports League by @funpluscharity
- Learning Graph by jotomo
- IKEA furniture Graph by @rvanbruggen
- Enterprise Content Management Graph by @PieterJanVA
- US Flights & Airports by @_nicolemargaret
- Chess Games and Positions by @wefreema
- Why JIRA should use Neo4J by @PieterJanVA
- Mystery Science Theater 3000 Actors and Characters by @virtualswede
- Breaking Bad characters are interested in some products, let's see which are by @fforbeck
- Ditching Grandma - Graphy Accounting by @ShaunDaley1
- MotoGp Graph Gist by @ricshouse
- European Royalty by @frant_hartm
- Product Catalog by @funpluscharity
- A Simple Meta-Data Model by @perival
Saturday, October 19, 2013
Friday, October 4, 2013
Scroble with python / scroble.py
#!/usr/bin/env python """ usage python scroble.py <artist> <song> <timestamp> """ import sys import time import pylast API_KEY = "api-key"; API_SECRET = "api-secret" USERNAME = "lastfm-username" PASSWORD = "lastfm-password" def main(): artist = sys.argv[1] title = sys.argv[2] song_started = sys.argv[3] network = pylast.LastFMNetwork(api_key = API_KEY, api_secret = API_SECRET, username = USERNAME, password_hash = pylast.md5(PASSWORD)) network.scrobble(artist = artist, title = title, timestamp = song_started) if __name__ == "__main__": main()
#https://gist.github.com/hasantayyar/6826107
Tuesday, March 26, 2013
Redis Transactions ve Rollback
Azizim transaction denildiğinde iki ana başlık temeldir "Rollback" ve "Rollforward" [1]. Hatta bana sorarsan en önemli olay rollbak olayıdır. Bir şeyler fena halde sarpa sararsa bir şeyler kötü giderse rollback eylersin.
Lakin benim de pek sevdiğim Redis'de işler böyle yürümüyor.
Redis özelliklerinni listelendiği sayfada "Transaction" da yer alıyor :
Konuyla ilgili diğer bağlantılar
[1] Transaction processing : http://en.wikipedia.org/wiki/Transaction_processing
Lakin benim de pek sevdiğim Redis'de işler böyle yürümüyor.
Redis özelliklerinni listelendiği sayfada "Transaction" da yer alıyor :
Fakat redis transaction ile şunu kastediyor :
- Failsafe query
- Sorgularınızın ya tamamı çalışır ya da hiç biri çalışmaz.
Aklınızda olsun her transaction özelliği rollback özelliği var demek olmuyor. Redis'de kendiniz rollback yapacaksınız.
Redisin bu duruma mantıklı bir açıklaması var tabi
Why Redis does not support roll backs?
If you have a relational databases background, the fact that Redis commands can fail during a transaction, but still Redis will execute the rest of the transaction instead of rolling back, may look odd to you.
However there are good opinions for this behavior:
- Redis commands can fail only if called with a wrong syntax (and the problem is not detectable during the command queueing), or against keys holding the wrong data type: this means that in practical terms a failing command is the result of a programming errors, and a kind of error that is very likely to be detected during development, and not in production.
An argument against Redis point of view is that bugs happen, however it should be noted that in general the roll back does not save you from programming errors. For instance if a query increments a key by 2 instead of 1, or increments the wrong key, there is no way for a rollback mechanism to help. Given that no one can save the programmer from his errors, and that the kind of errors required for a Redis command to fail are unlikely to enter in production, we selected the simpler and faster approach of not supporting roll backs on errors.
- Redis is internally simplified and faster because it does not need the ability to roll back.
Konuyla ilgili diğer bağlantılar
- http://nosql.mypopescu.com/post/568248288/redis-multi-exec-discard-and-transactions
- http://stackoverflow.com/questions/7006268/redis-multi-inusring-atomicity/15321309#15321309
- http://redis.io/topics/transactions
[1] Transaction processing : http://en.wikipedia.org/wiki/Transaction_processing
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