JavaScript Enlightenment by Cody Lindley

By Cody Lindley

JavaScript Enlightenment by way of Cody Lindley
2013 | 166 Pages | ISBN: 1449342884 | writer: O’Reilly Media | PDF | 2 MB + 7 MB

If you´re a complicated newbie or intermediate JavaScript developer, JavaScript Enlightenment will solidify your knowing of the language particularly if you happen to use a JavaScript library. during this concise ebook, JavaScript specialist Cody Lindley (jQuery Cookbook) presents a correct view of the language by means of reading its gadgets and aiding nuances.

Libraries and frameworks assist you construct net functions fast and successfully, but if issues get it wrong or functionality turns into a subject, figuring out how and why they paintings is necessary. If you´re able to cross less than the hood and get your palms soiled with JavaScript internals, this is often your book.

  • Get a brief and digestible precis of ECMA-262, version three, sponsored via genuine code you could run instantly
  • Examine the construction of JavaScript objects
  • Learn complicated values, primitive values, scope, and inheritance
  • Understand the significance of the top object
  • Work with string, quantity, and Boolean items and values
  • Discover find out how to use the null price and the integrated math object
  • Get into the main points past Mozilla´s reference consultant for JavaScript 1.5
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    Or, as we just saw in the code, properties added to the constructor after instantiation. This high‐ lights the dynamic nature of objects in JavaScript. The Semantics of “JavaScript Objects” and “Object() Objects” Do not confuse the general term “JavaScript objects”, which refers to the notion of objects in JavaScript, with Object() objects. , var myObject = new Object()] is a very specific type of value expressed in JavaScript. Just as an Array() object is a type of object called array, an Object() object is a type of object called object.

    If you provide no parameter, then a null or undefined value will be assumed. log(typeof cody1, typeof cody2, typeof cody3); /* logs 'object object object' */ If a value besides null or undefined is passed to the Object() constructor, the value passed will be created as an object. So theoretically, we can use the Object() constructor to create any of the other native objects that have a constructor. Below, I do just that. DOCTYPE html>