New PDF release: Programming JavaScript Applications: Robust Web Architecture

By Eric Elliott

ISBN-10: 1491950250

ISBN-13: 9781491950258

Benefit from JavaScript's energy to construct strong web-scale or firm functions which are effortless to increase and continue. by means of using the layout styles defined during this functional booklet, skilled JavaScript builders will how to write versatile and resilient code that's easier—yes, easier—to paintings with as your code base grows.

JavaScript could be the so much crucial internet programming language, yet within the genuine global, JavaScript purposes usually holiday in case you make alterations. With this publication, writer Eric Elliott indicates you ways so as to add buyer- and server-side positive aspects to a wide JavaScript program with no negatively affecting the remainder of your code.

- learn the anatomy of a large-scale JavaScript application
- construct sleek internet apps with the functions of computing device applications
- research top practices for code association, modularity, and reuse
- Separate your software into diverse layers of responsibility
- construct effective, self-describing hypermedia APIs with Node.js
- attempt, combine, and set up software program updates in fast cycles
- regulate source entry with consumer authentication and authorization
- extend your application's achieve via internationalization

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Extra resources for Programming JavaScript Applications: Robust Web Architecture with Node, HTML5, and Modern JS Libraries

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500 directory specification. It was called Directory Access Protocol (DAP). Unfortunately, it was both complex and complicated, and no one implemented it completely. 17 This is the most widespread directory service in use today. I’ll give a short introduction to LDAP in the rest of this section. 4, An Address Book for PragBouquet Customers, on page 55. Simply put, LDAP is to directories what SQL is to relational databases. It helps you to model real-world entities as directory entries (not as tables) that have different attributes.

4, RubyGems, on page 299), and then establish a connection to the webshop database running on localhost. Now we have to map the flowers table to a Ruby class called Flower: File 5 Line 1 class Flower < ActiveRecord::Base; end That’s it! All we had to do was derive our class from ActiveRecord::Base. Every instance of class Flower represents a single row of the flowers table. ActiveRecord derives the name of the database table by taking the class name, turning it into lowercase, and pluralizing it.

45 O BJECT -R ELATIONAL M APPERS Validation As we all know, the most difficult tasks in software development are usually more or less unrelated to the actual problem being solved. The biggest problems are caused by error conditions: users enter invalid data, networks break down, hard disks crash, and so on. This is also true in database programming. The most important technique for preventing errors in relational databases is to impose constraints on columns so that they contain only valid values.

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Programming JavaScript Applications: Robust Web Architecture with Node, HTML5, and Modern JS Libraries by Eric Elliott

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