Yesterday I demonstrated how to transform a mundane recursive function tail recursive function. However, I received some criticism for that position, because there are better ways to implement run-length encoding with Clojure. While true, I think some of my critics1 missed the point of the exercise. ;-)
That said, your points are valid because in Clojure (and probably most if not all functional languages) resources should be seen as a low level 2 operation and to avoid if possible. The best way is to study the various functions of higher order and connect them together to create new functions. We go through great lengths to stress in this joy of Clojure, so do not retrace threshing floor. Instead, note the following:
(S def '[aaabcca email ede])
(Package definition (partial partition identity))
(Package S)
((A a a) (b) (c c) (a un) (d) (e e e e))" onmouseover="this.style.backgroundColor='#ebeff9'" onmouseout="this.style.backgroundColor='#fff'">;; => ((A at a) (b) (c c) (a) (d) (e e e e))
(Definition rle (comp (partial map (count Juxt First)) package))
(S RLE)
([4 bis] [1 b] [c 2] [2 a] [1 d] [4 e])" onmouseover="this.style.backgroundColor='#ebeff9'" onmouseout="this.style.backgroundColor='#fff'">=> ([4 a] [1 b] [c 2] [2 a] [1 d] [4 e])
(Definition RLD (mapcat part (corresponding partial repetition)))
RLD)" onmouseover="this.style.backgroundColor='#ebeff9'" onmouseout="this.style.backgroundColor='#fff'">(- Rle S> RLD)
(A aabcca un correo electrónico ede)" onmouseover="this.style.backgroundColor='#ebeff9'" onmouseout="this.style.backgroundColor='#fff'">;; => (A aabcca an email ede)
As a nice bonus, the point definitions3 above are free.
: F
1.
Criticism is probably not a fair statement. A better term would be Kritik. ↩
2.
Low compared with levels of abstraction and also very much the same way that hedonism is low. ↩
3.
Thank you very much Christophe Gran Malloy Alan, and Alan Dipert motivating4 ideas for this post. ↩
4.
That is, he stole their ideas and made them free point. cough. cough. ↩
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Rabu, 16 Maret 2011
Jumat, 11 Maret 2011
Hawaii News Reports tsunami waves in Japan earthquake
Today is the first day first day of spring break from school for my oldest daughter. And do they ever go anywhere exotic, but thank God we're not in Hawaii, where the big news is that the tsunami waves generated by the recent earthquake in Japan are starting to hit the islands. Kauai was the first affected.The waves were expected to arrive in the contiguous United States between 11:00 to 11:30 am EST - a little less than three hours as I write. People living near the beach in Santa Barbara County were advised to head for higher ground.
The tsunami has already hit the eastern coast of Japan, where, according to an AP, which swept "boats, cars, houses and people as widespread fires burning out of control." Is traveling at 500 miles per hour.
The tsunami was generated by the massive 8.9 magnitude earthquake that hit Japan recently and has people on their way engaged in the preparation and fearful for their safety.
According to Chip McCreery, director of System Pacific Tsunami Warning Center: "[The tsunami waves are] going to come with high currents, you can collect seabed rocks ... I can pick up cars, which can pick up fuel tanks, things get so rams and only amplifies the great tsunami destruction. "
The spokesman for the Honolulu Department of Emergency Management, John Cummings III said: "We are preparing for the worst and pray for the best."
We, too, are praying for the best and keep you informed on developments.
Crescent City CA - The tsunami waves struck first Crescent City California
CRESCENT CITY - Waves are beginning to emerge shortly along the north coast of California near the Oregon border of a tsunami caused by the earthquake in Japan. The tide began to rise shortly after 7:30 am on the beach in Crescent City, where the tsunami was expected to hit hardest in California. Officials predicted that the waves can reach up to 7 feet.
Local officials have been the activation of the tsunami warning sirens along the Del Norte and Humboldt County coast during the morning and urged residents in low lying areas to seek higher ground.Residents a port city in northern California once hit by a deadly tsunami prepared for another as the waves generated by the massive earthquake in Japan move closer to the western U.S. coast.Fishermen in Crescent City were firing their crab boats leaving the port to withstand a surge expected, while residents living in a trailer park near head to higher ground. The police also crosses low areas, spreading the word to evacuate. Boat owner John Brunsing says it is not so much the surf is dangerous, but the floating docks that get pushed into piles of springs when the big waves hit.Retired Steve Wiley insurance agent who lives in the trailer park Bayshore say he was informed of the evacuation by the sheriff who called the door.A 1964 tsunami killed 11 people in Crescent City.
First woman to sell for cash in IPAD 2 Line for $ 900 [VIDEO]
College student Amanda Foote has become tradition techie at all costs of waiting hours, sometimes days, to be the first to purchase a new product from Apple in a lucrative foreign job. After nearly 41 hours of waiting in line for two IPAD release of Apple's flagship store in New York, sold his number one for $ 900.Sat Foote throughout a rainy day, there was a stranger to help himself to a box of donuts he ate and slept with a total of 3 hours and 10 minutes in the time since it went online at 5 pm on Wednesdays and when was that at 9:00 am Friday. She plans to buy tickets for a concert of Lady Gaga with the money he got for his troubles.
The buyer, Sayed Hazem application developer, says he is thinking of leaving for a business trip at night and wants a IPAD 2 (which starts at $ 499) with him.
He is not alone in paying the cache to be among the first to buy apple products. About 30 people back, 20 years old, Mario Longo had been waiting in line since 5 am Friday for a friend who offered to pay $ 100. Craigslist is full of deals ranging from $ 100 to $ 999 to be online for a fee or sale of land.
In June, before launching the iPhone 4 spots in the queue to buy the new phone is reported on your behalf up to $ 1,200.
But the emerging market standing line has not reduced the enthusiasm of the people online that really wants to buy the device. Foote behind, standing in the second and third points were Brian Ceballos and Jose Cruz. High school students, both 17, had been in line since 6:00 pm on Wednesday. (Do not tell their teachers.)
"We like competition, the atmosphere, meet people," says Cruz.
Further down the line of bright yellow ponchos, Rafael Fischmann and Breno Masi had been waiting since 3:00 am They flew to New York from Brazil especially to buy iPads, like Francisco Degode of Belgium, who beat line for a few minutes.
The IPAD officially goes on sale in Apple stores, Best Buy, Target and Wal-Mart at 5:00 pm on Friday. Here is a report from the store. For those who are not so enthusiastic about the experience authentic online, online orders are live now.
Kamis, 10 Maret 2011
Eva Braun En Privado (PHOTOS): Un-release photos of Adolf Hitler wife wnfun
Eva Braun has long been associated with one of the darkest chapters in the history of the 20th century, but some of the newly released photographs are revealing new dimensions of the woman who was the lover of the life of Adolf Hitler and, his last hours, frantic together, his wife.Showing Braun, a former model, relaxing with friends at home and glamorous posing in a bathing suit while on vacation, this collection of previously unpublished photographs from a cache of images seized by the U.S. Army in 1945 and brought to light by the collector and curator Reinhard Schulz exclusively for life.
Julianne Moore will have to master an accent very different from...
Julianne Moore will have to master an accent very different from his television role next: The Oscar-nominated actress has been named as none other than Sarah Palin in the HBO movie about the 2008 presidential election, "Game of Change."Based on the book of the same name, the film will chronicle John McCain 2008 White House bid. Moore is set to star as former Alaska governor-turned-McCain-Palin, running mate reports, the magazine Entertainment Weekly.
The project comes from director Jay Roach and writer Danny Strong, who worked on the network "Recount"about the 2000 election. This film won a Golden Globe and Emmy three.
Last television appearance was Moore's last season as Jack Donaghy arc lost the love of Boston, Nancy Donovan, who spoke with an accent thick ultra Bahhhston.
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