By Ophir Frieder
In case you understand easy high-school math, you could quick study and follow the center recommendations of computing device technology with this concise, hands-on booklet. Led via a group of specialists, you will quick comprehend the adaptation among computing device technology and computing device programming, and you may learn the way algorithms assist you clear up computing difficulties. every one bankruptcy builds on fabric brought previous within the publication, so that you can grasp one middle construction block sooner than relocating directly to the subsequent. you are going to discover basic subject matters comparable to loops, arrays, items, and sessions, utilizing the easy-to-learn Ruby programming language. Then you will placed every little thing jointly within the final bankruptcy by means of programming an easy video game of tic-tac-toe.
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Approximately This Book
Demystify the quandaries of net improvement utilizing Play Framework
attempt and debug your apps by utilizing Play's in-built trying out framework
grasp the middle beneficial properties of Scala via a complete insurance of code and examples for various scenarios
Who This booklet Is For
This booklet is meant for these builders who're prepared to grasp the inner workings of Play Framework to successfully construct and set up web-related apps.
What you'll Learn
customise your framework to house the explicit necessities of an software
strengthen responsive, trustworthy, and hugely scalable functions utilizing Play Framework
construct and customise Play Framework plugins that may be utilized in a number of Play functions
make yourself familiar with third-party APIs to prevent rewriting current code
achieve an perception into many of the points of checking out and debugging in Play to effectively try out your apps
Get to understand all in regards to the strategies of WebSockets and Actors to procedure messages in keeping with events
Play Framework is an open resource internet software framework that's written in Java and Scala. It follows the Model-View-Controller architectural development and allows the consumer to hire Scala for program improvement, whereas retaining key homes and lines of Play Framework intact.
Starting off through development a uncomplicated software with minimum positive factors, you get an in depth perception into dealing with information transactions and designing versions in Play. subsequent, you enterprise into the thoughts of Actors and WebSockets, the method of manipulating information streams, and checking out and debugging an program in Play. eventually, you achieve an perception into extending the framework by way of writing customized modules or plugins in Play. each one bankruptcy has a troubleshooting part that is helping you out by way of discussing the explanations of, and ideas to, a few often confronted concerns.
Organize for Microsoft examination 70-486 — and support reveal your real-world mastery of constructing ASP. internet MVC-based options. Designed for knowledgeable builders able to improve their prestige, examination Ref specializes in the critical-thinking and decision-making acumen wanted for fulfillment on the Microsoft professional point.
DotNetNuke writer Shaun Walker leads this superlative writer crew of MVPs whereas offering the newest replace of a bestseller. they give entire insurance of the foremost revisions to DotNetNuke five, equivalent to extra granular management, widgets, XHTML compliance, superior social networking, workflow, and higher content material administration.
Extra resources for Computer Science Programming Basics in Ruby: Exploring Concepts and Curriculum with Ruby
Using irb, initialize three variables, x, y, and z, each to some number less than 10. Design an equation with these variables using at least one multiplication, one di‐ vision, and one addition or subtraction element. Have the computer do it once without parentheses, and then add parentheses to the equation and try it again. Are the answers the same? If not, why not? 3. 0. 5, like we saw earlier? 4. Write the expected value of x after both lines are executed. a. irb(main):001:0> x = 9 irb(main):002:0> x = x/2 b.
Programs are not limited to one-directional control flow. In this chapter, we discuss programming constructs that allow us to change program control flow. Understanding this control flow is essential to being able to create and test (debug) an implementation of an algorithm. Figure 4-3. info | 45 Gem of Wisdom An If-Then-Else statement or its equivalent is found in every programming language. 4 If-Then-Else Statements Ruby uses an if statement for basic conditional control flow. The basic form of an if statement is shown in Example 4-3.
Irb(main):001:0> a = 4 => 4 irb(main):002:0> b = 3 => 3 irb(main):003:0> c = 5 => 5 This example creates three variables named a, b, and c and initializes their data to 4, 3, and 5, respectively. While these variables were given simple names, variables can be given almost any name you wish. , x1, x2, zxy). Variable names should explain the data they represent. ) because these char‐ acters often carry specific meaning. Also note that variables cannot begin with integers. Ruby is case-sensitive, so myName is different from myname.
Computer Science Programming Basics in Ruby: Exploring Concepts and Curriculum with Ruby by Ophir Frieder