Professional javascript for web developers 3rd edition source code

I wrote the 1st part in response to the excellent writeup by Richard Bovell. In this 2nd part I will explain in more detail how you can use WebStorm for learning JavaScript aka js effectively. This 2nd part was requested by Richard. Please note that following the 1st part is not required, but recommended.

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Object-Oriented JavaScript - Third Edition

Please note that all the code examples for this chapter are available as a part of this chapter's code download on the book's website at www. When JavaScript first appeared in , its main purpose was to handle some of the input validation that had previously been left to server-side languages such as Perl. Prior to that time, a round-trip to the server was needed to determine if a required field had been left blank or an entered value was invalid. Netscape Navigator sought to change that with the introduction of JavaScript.

The capability to handle some basic validation on the client was an exciting new feature at a time when use of telephone modems was widespread. The associated slow speeds turned every trip to the server into an exercise in patience. Since that time, JavaScript has grown into an important feature of every major web browser on the market.

No longer bound to simple data validation, JavaScript now interacts with nearly all aspects of the browser window and its contents. JavaScript is recognized as a full programming language, capable of complex calculations and interactions, including closures, anonymous lambda functions, and even metaprogramming. JavaScript has become such an important part of the web that even alternative browsers, including those on mobile phones and those designed for users with disabilities, support it.

Even Microsoft, with its own client-side scripting language called VBScript, ended up including its own JavaScript implementation in Internet Explorer from its earliest version. The rise of JavaScript from a simple input validator to a powerful programming language could not have been predicted. JavaScript is at once a very simple and very complicated language that takes minutes to learn but years to master. To begin down the path to using JavaScript's full potential, it is important to understand its nature, history, and limitations.

As the web gained popularity, a gradual demand for client-side scripting languages developed. Adding to users' pain was the large number of round-trips to the server required for simple form validation. Imagine filling out a form, clicking the Submit button, waiting 30 seconds for processing, and then being met with a message indicating that you forgot to complete a required field. Netscape, at that time on the cutting edge of technological innovation, began seriously considering the development of a client-side scripting language to handle simple processing.

In , a Netscape developer named Brendan Eich began developing a scripting language called Mocha later renamed as LiveScript for the release of Netscape Navigator 2. The intention was to use it both in the browser and on the server, where it was to be called LiveWire. Netscape entered into a development alliance with Sun Microsystems to complete the implementation of LiveScript in time for release.

Just before Netscape Navigator 2 was officially released, Netscape changed LiveScript's name to JavaScript to capitalize on the buzz that Java was receiving from the press.

Because JavaScript 1. At this time, Microsoft decided to put more resources into a competing browser named Internet Explorer. Shortly after Netscape Navigator 3 was released, Microsoft introduced Internet Explorer 3 with a JavaScript implementation called JScript so called to avoid any possible licensing issues with Netscape. This major step for Microsoft into the realm of web browsers in August is now a date that lives in infamy for Netscape, but it also represented a major step forward in the development of JavaScript as a language.

Unlike C and many other programming languages, JavaScript had no standards governing its syntax or features, and the three different versions only highlighted this problem. With industry fears mounting, it was decided that the language must be standardized. In , JavaScript 1. Since that time, browsers have tried, with varying degrees of success, to use ECMAScript as a basis for their JavaScript implementations.

Indeed, a complete JavaScript implementation is made up of the following three distinct parts see Figure :. In fact, the language has no methods for input or output whatsoever. ECMA defines this language as a base upon which more-robust scripting languages may be built. A host environment provides the base implementation of ECMAScript and implementation extensions designed to interface with the environment itself.

What exactly does ECMA specify if it doesn't reference web browsers? On a very basic level, it describes the following parts of the language:. ECMAScript is simply a description of a language implementing all of the facets described in the specification.

The most recent edition of ECMA is edition 7, released in This was a major reason why JavaScript 1. The second edition of ECMA was largely editorial. ECMAScript implementations typically don't use the second edition as a measure of conformance.

The third edition of ECMA was the first real update to the standard. It provided updates to string handling, the definition of errors, and numeric outputs. It also added support for regular expressions, new control statements, try-catch exception handling, and small changes to better prepare the standard for internationalization. The fourth edition of ECMA was a complete overhaul of the language. In response, Ecma TC39 reconvened to decide the future of the language.

The resulting specification defined an almost completely new language based on the third edition. The fourth edition includes strongly typed variables, new statements and data structures, true classes and classical inheritance, and new ways to interact with data. The result was a smaller proposal with incremental changes to ECMAScript that could be implemented on top of existing JavaScript engines.

Ultimately, the ES3. ECMAScript 3. The fifth edition sought to clarify perceived ambiguities of the third edition and introduce additional functionality. The new functionality includes a native JSON object for parsing and serializing JSON data, methods for inheritance and advanced property definition, and the inclusion of a new strict mode that slightly augments how ECMAScript engines interpret and execute code.

The fifth edition saw a maintenance revision in June ; this was merely for corrections in the specification and introduced no new language or library features. The sixth edition of ECMA—colloquially referred to as ES6, ES, or ES Harmony—was published in June , and contains arguably the most important collection of enhancements to the specification since its inception. ES6 adds formal support for classes, modules, iterators, generators, arrow functions, promises, reflection, proxies, and a host of new data types.

This revision included only a handful of syntactical additions such as Array. This revision included asynchronous iteration, rest and spread properties, a collection of new regular expression features, a Promise finally catchall handler, and template literal revisions. The ninth edition of ECMA is still being finalized, but it already has a large number of features in stage 3.

Its most significant addition will likely be dynamic importing of ES6 modules. Additionally, a conforming implementation may do the following:.

These criteria give implementation developers a great amount of power and flexibility for developing new languages based on ECMAScript, which partly accounts for its popularity. Netscape Navigator 3 shipped with JavaScript 1. That same JavaScript 1. With JavaScript's explosive popularity, Netscape was very happy to start developing version 1. There was, however, one problem: Ecma hadn't yet accepted Netscape's proposal. However, because of undocumented and improperly replicated features, JScript 1.

Netscape Navigator 4 was shipped in with JavaScript 1. As a result, JavaScript 1. Microsoft put out a press release touting JScript 3. Netscape opted to update its JavaScript implementation in Netscape Navigator 4.

Netscape added support for the Unicode standard and made all objects platform-independent while keeping the features that were introduced in JavaScript 1. When Netscape released its source code to the public as the Mozilla project, it was anticipated that JavaScript 1. However, a radical decision to completely redesign the Netscape code from the bottom up derailed that effort. JavaScript 1. Internet Explorer 8 was the first to start implementing the fifth edition of ECMA specification and delivered complete support in Internet Explorer 9.

Firefox 4 soon followed suit. The DOM maps out an entire page as a hierarchy of nodes. Consider the following HTML page:. This code can be diagrammed into a hierarchy of nodes using the DOM see Figure By creating a tree to represent a document, the DOM allows developers an unprecedented level of control over its content and structure. This represented a tremendous step forward in web technology but also a huge problem.

It was decided that something had to be done to preserve the cross-platform nature of the web. The fear was that if someone didn't rein in Netscape and Microsoft, the web would develop into two distinct factions that were exclusive to targeted browsers.

Note that the DOM is not JavaScript-specific and indeed has been implemented in numerous other languages. Among its introductions is the addition of Mutation Observers to replace Mutation Events. The languages in the following list are XML-based, and each DOM adds methods and interfaces unique to a particular language:. However, only the languages in the preceding list are standard recommendations from W3C. The DOM had been a standard for some time before web browsers started implementing it.

Internet Explorer made its first attempt with version 5, but it didn't have any realistic DOM support until version 5. Internet Explorer didn't introduce new DOM functionality in versions 6 and 7, though version 8 introduced some bug fixes. After Netscape 7, Mozilla switched its development efforts to the Firefox browser. The goal of the Mozilla development team was to build a percent standards-compliant browser, and their work paid off.

DOM support became a huge priority for most browser vendors, and efforts have been ongoing to improve support with each release. The following table shows DOM support for popular browsers. The content of this compatibility table is changing all the time and should only be used as a historical reference. Using the BOM, developers can interact with the browser outside of the context of its displayed page.

What made the BOM truly unique, and often problematic, was that it was the only part of a JavaScript implementation that had no related standard. Primarily, the BOM deals with the browser window and frames, but generally any browser-specific extension to JavaScript is considered to be a part of the BOM.


The Modern JavaScript Tutorial

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Eloquent JavaScript, 3rd Edition. 68 Specific Ways to Harness the Power of JavaScript. Mastering Front-End Web Development (HTML, Bootstrap, CSS, SEO.

20 Best JavaScript Books To Go From Beginner to Advanced

Zakas, an independent software developer living in Mountain View, California. I created the ESLint open source project and wrote several books. I started working on web applications in and instantly fell in love. At that time, the Yahoo homepage was the third-most visited web page in the world, and a lot of my approach to web development arose from my experience during that time. At one point I was responsible for keeping 22 developers in four countries productive and aligned while we pushed out a total rewrite of a very high-traffic page. Later, I joined Box to help the company scale its aging front-end architecture. Developers were having a lot of trouble writing maintainable code and were scared to touch old code for fear of breaking something unrelated. As part of the cleanup effort, I led a team that created T3 , a small JavaScript application framework aimed to enforce better coding structures and loose coupling in the code base. We saw great improvements when we introduced T3 into the codebase and ended up with better quality code that was more easily testable and less fragile.

32 Best Places to Learn JavaScript for Web Development Beginners

professional javascript for web developers 3rd edition source code

JavaScript is a web-based scripting language that has been widely used in web application development. In particular, it is often used to add a variety of dynamic functions to web pages, providing users with a smoother and more pleasing browsing experience. Web pages are not the only place to use JavaScript. Many desktop and server programs use it as well.

AngularJS Template.

Ultimate Reading List for Developers | 40 Web Development Books

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Professional JavaScript for Web Developers, 3rd Edition

Java exercises here are indented to provide you the opportunity to practice the Java programming language concepts. If you're still not satisfied by the available CLIs like myself, check out the Gub gem. Hi Dale, thanks for the questions. This section works for programming novices as well as experienced programmers because it lets you set related material are available on GitHub. Website information. My Guitar Shop exercises. For sometime GitHub will accept Basic authentication, the use of username and password, to access repositories on GitHub - to clone, push and pull.

An introduction to writing code with JavaScript covers A complete guide for web designers and developers who Eloquent JavaScript, 3rd Edition.

The best way to learn Programming- Where to start

By Wiley in Online Courses. This book presents the philosophy of Domain-Driven Design DDD in an accessible, practical manner for building applications for complex domains. A focus is placed on the principles and practices of decomposing a complex problem space as well as the implementation patterns and best practices for shaping a maintainable solution space. NET since version 1.

Professional JavaScript for Web Developers

RELATED VIDEO: I paid 3 developers on Fiverr to develop the same website...

This is a Item Item Item paragraph with a list following it. As with outerText, this property is used very rarely since it modifies the element on which it is accessed. It is recommended to avoid it whenever possible. The problem occurs when event handlers or other JavaScript objects are assigned to subtree elements that are removed. If an element has an event handler or a JavaScript object as a property and one of these properties is used in such a way that the element is removed from the document tree, the binding between the element and the event handler remains in memory.

Identifier:HomeKit accessories are supported: In Homebridge's config.

483 Professional JavaScript for Web Developers, 3rd Edition

Free programming books are in abundance. I took the guesswork out of the search for free programming books by compiling a list of stellar and highly-regarded best books for front end development. While some of these resources are free from a website, this definition suggests you can theoretically print out these resources and read them from your nightstand. Read on to discover the best programming books for front-end web developers. Other Books on Code articles about Javascript and front-end development:. With these free programming books, you can create a curriculum for yourself to learn front-end web development from total beginnings to advanced users and beyond.

Useful VS Code Extensions For Front-End Developers

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  1. Adiv

    Thank you so much! and more posts on this topic will be in the future? I'm really looking forward to it! zpr.