programming ruby the pragmatic programmers guide epub

... 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

... algorit hm. The following code slowly builds up the board, with only the knowledge Report erratum [...]... winner A rating is first the rank of the type of hand and then the rank of the face ... manage their state. The methods [ ] and to_s( ) provide indexing and display for the @grid. You can also easily locate the Person object in the @grid wit h player_index( ) and see whether the Level ... might specify the size of a String, for example Behind the scenes, the elements are replaced with the result of the code block you passed, sorted, and then switched back to the original elements

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

... to expand your programming skills set with a new language, you have come to the right place Every programmer has a story about they got into programming and what the first program they wrote was ... learners discover their coding skills and to learn processes that make it easy for them to think of solutions to daily human problems Many other programming books are coming in the future so be ... roughly an hour to We have designed the content of the book to be easy to follow for both complete beginners to programming and those with knowledge of other programming languages or have been

Ngày tải lên: 05/03/2019, 08:44

... typographically with their neighbors) Instead of carrying their own sounds, the modifier letters generally modify the sounds of their neighbors In other words, conceptually they're diacritical marks Because they occur in the middle of words, most textanalysis processes treat them as letters, so they're classified as ... of letterforms are used together, with one series, the "uppercase," used for the first letter of a sentence or a proper name, or for emphasis, and the other series, the "lowercase," used for most other letters ... The Roman numerals and the Hangzhou numerals are the only characters in this category Other Number (No) All of the characters that belong in the "number" category, but not in one of the other subcategories, fall into this one

Ngày tải lên: 26/03/2019, 17:13

... hour,then the distance between them is shrinking at a rate of 70 miles per hour If the cars aredriving away from each other, then the distance grows at a rate of (a+b) miles per hour.Either way, the ... rates, then the average rate will NEVER be the average of the two rates given for the two legs of the journey. In fact,because the object spends more time traveling at the slower rate, the average ... relationshipbetween the unknowns and the known values in words. For example, you might say: "The total cost of the box is equal to the cost of the premium chocolates plus thecost of the regular chocolates."

Ngày tải lên: 24/07/2013, 11:01

... more thanone, move on to the second step Second: Use the "Therefore" TestThe conclusion of the argument is the FINAL claim In other words, every other claimleads to the conclusion, which ... locating the exact words of the conclusion Indicate how you found the conclusion: (A) The question contains the conclusion (B) The question hints at the conclusion in the argument (C) The argument ... provide support for the given conclusion They may be facts, opinions, or claims If they are opinions or claims, they will not be the overall claim the author is making; rather, they will be some

Ngày tải lên: 24/07/2013, 11:02

... each other The work-ers versus the nobles Native aristocracy: the rich & powerful ple of Athens They are struggling with thepeople from the provinces who are nowunder Athens' thumb The map ... look-ing for these components, you can more easily grasp the meanlook-ing and structure of the The Point is the most important message of the passage In other words, the author has written the passage ... simply, the Point is the crux of the simple story After all,the Point is the most important message that the author wants to convey We can also relate the Point to the Content/Judgment framework The

Ngày tải lên: 24/07/2013, 11:10

... appropriate syntax The BracingStyle property determines how the braces—{ }—are aligned in the code Setting the value to “C” begins the braces on the line after the declaration they’re associated ... receives the data type and the name of the variable as constructor parameters Then, use the CodeArgumentReferenceExpression object to wrap the default value of “DELETE FROM” This is then set as the ... nested objects, thereby increasing the complexity of the output line The only difference between the generated code for this statement and most of the other supported languages is the addition of

Ngày tải lên: 06/08/2013, 17:29

... mymodule_foo() For a theme hook func‐tion called theme_foo(), the function must be called mytheme_foo() For the func‐tion body, often there is a good starting point in the hook documentation or thetheme hook ... know the name of, visit http://drupal.org and typethe name into the search box • If it’s not in the first few results, try restricting the search to modules or themes,using the filters in the ... one or two of the example modules fromthe Examples project, try them out, and then look through their code (check the README.txt file for installation instructions) If there’s a programming topic

Ngày tải lên: 23/08/2013, 09:19

... light The further away the light source, thegreater the loss in: - the lighting hood; - the glass lid covering the aquarium; - the water Part of the light is reflected by the surface of the water, ... diffusion of heat viathe bed damages the roots of plants Furthermore, there is a danger that thecable may be partially unearthed by a bur-rowing animal in the tank The heating power level The temperature ... appearance, so they hide their diffusers and pipes in the decor, and the bubbles are only noticeable when they break the surface of the water For the reasons mentioned above, the ideal position

Ngày tải lên: 08/11/2013, 00:15

... added to create the tones for the one or two burnt s in the middle bric In the area where the plaster on the walls had peeled and faded (to the right of the door) the shapes of the bricks were ... ultramarine (the same as the sky mixture) was washed across the areas of the buildings on which the shadows were falling Other colours would be painted onto these shaded areas, but as with the underwash, ... scene, they were painted with the deepest tone at the top of the window and this was pulled downwards, with the addition of a little water at the base to lighten it 4 The colours for the stone

Ngày tải lên: 15/12/2013, 23:56

... on the table we just created Click the ‘Create’ tab on the Ribbon At the navigation pane, click the table to base the form on The table name will highlight when selected At the Ribbon in the ... Wizard’ Select the table or query to base the report on In the left box double click the field you wish to show on the report The item will move to the box on the right You can also use the arrow ... click the ‘Form’ option Trang 13MS Access creates a quick form The form contains the columns and data you created in the table At the bottom of the form are the navigation buttons Clicking the

Ngày tải lên: 24/12/2013, 02:15

... and the standard distribution has grown rapidly over the last years. All the other stuff can be found in public places such as RubyForge 1 or the Ruby Application Archive 2 . 1 http://www.rubyforge.org 2 http://raa .ruby- lang.org Report ... We also defer closing the connection until the end of the program, as it’s needed during the whole runtime. The Fruits of Our Labor Two weeks ago the coupons were sent to their lucky recipients. ... expected, the bouquets_flowers table contains seven rows describing the content of the “Red Dream” bouquet. Six of them refer to the rose entry in the flowers table, and one refers to the sunflower....

Ngày tải lên: 29/04/2014, 14:42