programming ruby the pragmatic programmers guide pdf

... in the download, there’ll be a bar above the snippet (just like the one here): This contains the path to the code within the download If you are reading the PDF version of this book and your PDF ... Pragmatic Programming, Pragmatic Bookshelf and the linking g device are trademarks of The Pragmatic Programmers, LLC.prod-Every precaution was taken in the preparation of this book However, the ... with the setup of the RubyGems environment; see the sidebar on the current page for more information on that issue 10 As mentioned in the previous chapter, there are some useful hints in the FXRuby

Ngày tải lên: 29/04/2014, 14:42

... off the top of the deck, and move them just above the bottom card This changes our deck to the following: 2 3 4 52 A B 1 (the 1 tells us to move just the B) 6 Find the output letter Convert the ... Key the deck This is the critical step in the actual operation of the cipher and the heart of its security There are many methods to go about this, such as shuffling a deck and then arranging the ... in order Again, the suits must match In a straight flush, the ace is allowed to be the highest card (above the king) or the lowest (below the Just like the straight flush, except the suit doesn’t

Ngày tải lên: 12/08/2014, 09:20

... more at http://www.rubyonrails.org/ 21 ERB is eRuby’s pure-Ruby cousin eRuby is written in C and stands for “embedded Ruby.” 22 You can learn about ERB ’s other features from the online documentation ... read from the user and shoved right into theHashunder the$1key Exactly what’s in that$1variable is the trick Notice that the originalgsub( ) from the lowerputs( ) call sets performs another substitution, ... is used to return (( )) tokens, even though they are the delimiter forsplit( ) However, the capturing parentheses are placed to drop the trailing)) The leading(( is kept for later token identification

Ngày tải lên: 12/08/2014, 09:20

... and then allows the user to change them to fit their needs by passing the object to a block ininitialize( ) Inside the block, the user can use the accessors to set details for the answer they ... random the best we can do? Is that hard to build? Uh, no Here’s a sample by Avi Bryant: 30 Ruby Quiz is hosted on the Ruby Talk mailing list, and you will often see discussion there about the problems ... that! The initialize( ) method uses the passed-in name of the opponent to locate the correct Class object and redefine the choose( ) method of that Class to something super easy to deal with The

Ngày tải lên: 12/08/2014, 09:21

... algorithm The following code slowly builds up the board, with only the knowledge Trang 11it has at the time, constantly refining its image of the board until theentire puzzle is created Here’s the ... to convert them correctly.35 At the bottom of that method, you can see the handoff to the dictionary end end This method is just a line-by-line read of the dictionary I normalize the The method ... words) The idea here is to match numbers against the front of the phone num-ber, passing the matched words and what’s left of theStringdown recur-sively, until there is nothing left to match The

Ngày tải lên: 12/08/2014, 09:21

... You can pass either:topor :bottom to these methods, depending on whether you want to use the top card of the deck as your count or the bottom You can see how these are resolved in the private methodcounter_to_count( ... splits the number into afrontand a back The front variable is set to the leading digits of the number, leaving thebackholding all the digits that fit into three-digit groupings The method then ... Ruby’s classes are open, and then just pass in the block that handles the new cipher You can see from these tests that most of the methods simply manip-ulate an internal deck representation The

Ngày tải lên: 12/08/2014, 09:21

... ) Trang 4Themove( ) method shows the board to the player and asks for a move.It loops until it has a valid move and then returns it The other overrid-den method,finish( ), displays the final ... method writes the Array delimiters to io, before and after the Position search The save( ) method that is called during the search will fill in the contents of the previously discussed Ruby source ... won The private methoddraw_board( ) is the tool used by the other two methods to render a human-friendly board fromBoard.to_s( ) Taking that a step further, let’s build a couple of AIPlayers These

Ngày tải lên: 12/08/2014, 09:21

... trim the list The method just walks the word list using the current map to convert the words Words are fed to the map to learn if they are in the dictionary, kept in the working list whether they’re ... for the rest of this branch of the search, and unsolvable tokens are shelved Then I start working on the next token with the new map. The recursion terminates when a complete map is found, the ... arguments.The dictionary file is read along with the number of allowed partials (words not in the dictionary) The rest of the arguments are filtered through the Cryptogram class, and the results

Ngày tải lên: 12/08/2014, 09:21

... Windows Guides, and the Windows Guides logo are trademarks of mintywhite.com Microsoft, Windows and Office are trademarks of Microsoft Corporation All other trademarks are the property of their ... and then click Next 5 Confirm your restore point, and then click Finish System restore - this restores the selected Windows Vista configuration and then restarts the computer 6 Log on to the ... Trang 1The Windows GuideMastering Microsoft’s OS for Beginners mintywhite.com Windows Vista The Pocket Guide mintywhite.com Trang 3If this guide is distributed it is

Ngày tải lên: 22/02/2014, 00:20

... sickness experiences; they learn the cultural explanations of these conditions, the standard treatments, and the appropriate responses to others with the same conditions It is the patient's experiences ... Structure In general, there are two distinct types of health providers in the Arab world: the government and the private providers The government system is the largest of the sectors These services ... writing a guide to a culture is that the guide reports on normative behaviors In the case of this guide, the normative behaviors refer to recent unacculturated Arabs and cultural norms for the Arab

Ngày tải lên: 05/03/2014, 21:20

... holding that the protection allowing for the tolling expired on the last day of the plaintiff’s active duty, not the following day (the first day of civilian status).30 In other words, the state’s ... benefits of the Act, s/he does not thereby waive all other rights under the Act For example, when litigating the legality of a repossession, the servicemember does not waive the tolling of the statute ... detained in a foreign country, then the benefits, protections, and responsibilities of the SCRA are as they would otherwise be If the servicemember is deceased, then most of the benefits, protections,

Ngày tải lên: 06/03/2014, 10:20

... as they arise Speak with the neurologist In some cases, the neurologist will be the at-tending physician caring for the stroke survivor; in others, the gist will serve as a consultant to the ... tube (catheter) is threaded through the blood vessels start-ing in the arm or groin area The stent, a tubular, expandable wire meshdevice, is then placed in the area of blockage using the catheter, ... 15num-however: they result in damage to one or more areas of the brain Thusthe aftereffects of stroke are primarily determined by the specific area(s)of the brain affected, rather than by the specific

Ngày tải lên: 16/03/2014, 12:20

... from the original files In the event that the original data set gets corrupted, damaged, deleted or lost, the backup can be used to recover or restore the data A backup therefore minimizes the ... partition other than your C: drive You can either back up the entire drive or select the folders located on your C: drive from the Quick List above Just make sure you have enough free space in the backup ... Volume… The tool will query the volume for available shrink space and then let you specify the amount by which you wish to shrink the volume in MB Make your entry and click > Shrink to start the

Ngày tải lên: 18/03/2014, 01:20

... fitting to the projecting caoutchouc tubing, and the open end stopped with a piece The projecting end of the glass tube, fitted to the cork in the neck of the flask, is passed through another cork ... orfour times; then bring the precipitate on the filter by means of a glass rod qv a feather; wash it down into thepoint of the filter; wash laistly with a little non-ackhfied water ; cover the funnel ... crucible, gradually increasing the heat; burn the filteron a cradle until quitewhite beforeađingthe ashesto the contentsof the cruciblẹ If thepre- § 74, b and c.) Weigh the precipitate as Mg,P,Oj.

Ngày tải lên: 22/03/2014, 14:20

... to follow The dead fish scent was so strong the dogs were distracted from following the scent of the fox, allowing the quarry to escape And so, the hunt was on Money is a red herring, the appearance ... about them getting out If any one of them starts to climb out of the bucket, others will pull them back If you try to do things others have not been able to achieve, be prepared to have them ... hurting themselves He offered them jobs and agreed to train them to run a business but only if they worked at the restaurant “The only escape of being poor is to work your way out,” Lee said The

Ngày tải lên: 23/03/2014, 14:20

... maps displays the range of addresses in the process’s address space into which the file is mapped, the permissions on these addresses, the name of the file, and other information. The maps table ... call—and the total number of processes on the system .The final entry is the process ID of the process that most recently ran. The /proc/uptime file contains the length of time since the system ... contains the same information as the ordi- nary file /etc/mtab, which is automatically updated by the mount command. These are the elements of a mount descriptor: n The first element on the line is the...

Ngày tải lên: 26/01/2014, 07:20

... also reduce the population. 201 million couples currently don’t have access to the services they need to reduce the size of their families. The United Nations predicted that if they did have ... making a difference in the world: • ‘That’s just the way the world is’ If people thought this way in the past then women would have never got the right to vote and apartheid would still exist ... use will only find that it has been taken by another the fish in the sea are valueless to the fisherman, because there is no assurance that they © 2007 Jane Genovese. All rights reserved....

Ngày tải lên: 17/12/2013, 02:15

... different documents: HTML, PDF, RAW, feed, and error. The HTML document uses the site templates and renders an XHTML page. The PDF document renders content in as a PDF le. The RAW document enables ... describes the different path constants; the examples, described within the parentheses, assume that the installation is located in /joomla and that we are accessing the installation from the frontend; ... this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, Packt Publishing,...

Ngày tải lên: 23/12/2013, 10:15

... 261). It is known that the lower people’s RD is, the more they accept responsibility and feel responsible for others’ welfare, while the higher people’s RD is, the greater their tendency to ignore ... deny that the increasingly omnipresent nature of the World Wide Web in the workplace is dramatically revolutionizing the manner in which we work. The advantages of the World Wide Web are the ability ... organizational position. The high response rate of 89% (481) was attributed to the fact that the participants were either registered in the courses or they were acquainted with the MBA students. Our...

Ngày tải lên: 24/12/2013, 18:15

... of the other’s name or likeness, 46 unreasonable publicity given to the other’s private life, 47 and publicity that unreasonably places the other in a false light before the public. 48 Of these ... the ordinary course of business” includes anything of interest to the employer’s business. The Court stated that the exclusion does not apply to the interception of personal calls except to the ... employer provided notice to the employee of the monitoring and whether the level of monitoring was justified are both relevant. Depending on the circumstances of the monitoring and which test...

Ngày tải lên: 24/12/2013, 18:15