Object-Oriented JavaScript - Third Edition by Ved Antani, Stoyan Stefanov

By Ved Antani, Stoyan Stefanov

Learn every little thing you must find out about object-oriented JavaScript with this entire consultant. input the realm of state-of-the-art development!

About This Book

  • This booklet has been up to date to hide the entire new object-oriented good points brought in ECMAScript 6
  • It makes object-oriented programming obtainable and comprehensible to net developers
  • Write higher and extra maintainable JavaScript code whereas exploring interactive examples that may be utilized in your individual scripts

Who This e-book Is For

This ebook is perfect for brand new to intermediate JavaScript builders who are looking to organize themselves for internet improvement difficulties solved via object-oriented JavaScript!

What you are going to Learn

  • Apply the fundamentals of object-oriented programming within the JavaScript environment
  • Use a JavaScript Console with whole mastery
  • Make your courses cleanser, quicker, and appropriate with different courses and libraries
  • Get conversant in Iterators and turbines, the hot beneficial properties additional in ES6
  • Find out approximately ECMAScript 6's Arrow services, and cause them to your own
  • Understand items in Google Chrome developer instruments and the way to take advantage of them
  • Use a mixture of prototypal inheritance and copying houses on your workflow
  • Apply reactive programming innovations whereas coding in JavaScript

In Detail

JavaScript is an object-oriented programming language that's used for site improvement. web content built at the present time at the moment stick to a paradigm that has 3 in actual fact distinguishable components: content material (HTML), presentation (CSS), and behaviour (JavaScript). JavaScript is one very important pillar during this paradigm, and is answerable for the operating of the internet pages.

This booklet will take your JavaScript abilities to a brand new point of class and get you ready to your trip via specialist internet improvement. up to date for ES6, this booklet covers every thing it is very important unharness the ability of object-oriented programming in JavaScript whereas development specialist internet functions. The booklet starts with the fundamentals of object-oriented programming in JavaScript after which steadily progresses to hide capabilities, gadgets, and prototypes, and the way those ideas can be utilized to make your courses purifier, extra maintainable, speedier, and appropriate with different programs/libraries.

By the tip of the booklet, you might have discovered how one can comprise object-oriented programming on your net improvement workflow to construct expert JavaScript applications.

Style and approach

Filled with functional directions, the booklet indicates you the way to enforce object-oriented good points of JavaScript within the actual global. The to-the-point nature of the publication will gain builders who're searching for a fast moving advisor to benefit object-oriented JavaScript.

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Extra resources for Object-Oriented JavaScript - Third Edition

Sample text

IsFinite() doesn't, hence it's more accurate. NaN What was this NaN in the previous example? It turns out that despite its name, Not a Number, NaN is a special value that is also a number: > typeof NaN; "number" > var a = NaN; > a; NaN You get NaN when you try to perform an operation that assumes numbers, but the operation fails. isNaN ES5 has a global method–isNaN(). It determines if a value is NaN or not. isNaN() (Notice that this method is not global). isNaN() is that global isNaN() casts non-numeric values before evaluating them to be NaN.

You were also introduced to object-oriented programming concepts and have seen how JavaScript is not a class-based OO language, but a prototype-based one. Finally, you learned how to use your training environment–the JavaScript console. Now, you're ready to dive into JavaScript and learn how to use its powerful OO features. However, let's start from the beginning. The next chapter will guide you through the data types in JavaScript (there are just a few), conditions, loops, and arrays. If you think you know these topics, feel free to skip the next chapter, but not before you make sure you can complete the few short exercises at the end of the chapter.

Not all consoles print the undefined value; for example, the Firebug console. Operators Operators take one or two values (or variables), perform an operation, and return a value. Let's check out a simple example of using an operator, just to clarify the terminology: > 1 + 2; 3 In the preceding code: The + symbol is the operator The operation is addition The input values are 1 and 2 (they are also called operands) The result value is 3 The whole thing is called an expression [ 30 ] Primitive Data Types, Arrays, Loops, and Conditions Instead of using the values 1 and 2 directly in the expression, you can use variables.

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