javascript definitive guide 7th edition

GetCookie () function that resolves the value of the Document.cookie property, stores the corresponding name/value pair in an object, and returns the object at the end of the function.Parsing Document.cookie Property values/** returns the value of Document.cookie as an object of name/value pairs * Assuming that the value of the stored cookie is encoded with the encodeurlcomponent () function */function GetCookie () { var cookie = {}; Initialize the last object to

PDF version, English version 158th page,var IsArray = Function.isarray | | Function (o) {return typeof o = = = = "Object" object.prototype.tostring.call (o) = = = "[Object Array]";}; return typeof o = = = "Object" object.prototype.tostring.call (o) = = = "[Object Array]";};Array.isarray is a function provided by ES5, this example is to implement this function in ES3, first, if the browser supports Array.isarray, it is assigned to IsArray, otherwise the subsequent function is assigned to IsArray.

: The instance method of JS must use the This keyword, and the class's methods usually do not use the This keyword, they refer to its parameter operation;The P222-based inheritance mechanism in the extended p223js of class 9.4 is dynamic: Objects inherit properties from other prototypes, and if the properties of the prototype change after the object is created, it also affects all instance objects that inherit the prototype, and we can augment the JS class by adding a new method to the prototype

A function is a special object;Object: A collection of properties (name-value pairs);The function is used to initialize (with the new operator) a newly created object is called a constructor.The object is called as a method when the property is a function.Within a function body, a local variable takes precedence over a global variable of the same name.code example:varscope = "global"; // Declare a global variablefunctionCheckscope () {varScope = "local";//life a local variable with the same nam

1. Note:true // This creates a property named " -1.23" // This 1001st element of the array // Array index 1. Same as a[1]2. Delete operator produces sparse array3, set the length of the array will automatically cut off or add undefined4.javascript does not support a true multidimensional array but can be approximated by an array of arrays5. Splice modifies the array of calls, and slice does not6, using Unshift () is a one-time insertion instead of a s

Brief introductionSince 1996, JavaScript's: Authoritative guide has been defined for JavaScript Bible programmers, Programmer's guides and a comprehensive reference to the core language and Web browser of the client JavaScript API. The 6th edition includes HTML5 and ECMAScript 5, a new chapter with jquery and server-si

: Indicates whether the property can be deleted or modified.First, create the object1. Direct volume of objects var empty={}; // var point={x:0,y:0}; var point2={x:point.x,y=point.y}; var book={ "main title": "JavaScript", // "Sub-tit": "The Definitive Guide", // for: ' All audiences ', // property named reserved word , you must us

: Network Disk DownloadContent IntroductionThe edition of version 5th has been revamped for Ajax and Web 2.0 technologies. Compared with the previous version, the content of the update is more, overall close to the entire length of 1/2, and this is one of the reasons why the book came to a belated. Specifically, the 5th edition is updated in the following sections: The first part of the chapter on functions

the function that declares it and in any function nested within the body of the function. So in a function body, no matter where the variable is declared or even before it is declared, it can be used (without prompting for an error), but only after it has been declared and assigned, can it use the value assigned to it correctly. Therefore, in general, a good habit is to put the local variables to be declared in the function body at the top of the function body. var scope= "Global"; function f (

not parsed correctly when the semicolon is missing.Generally speaking, if a statement starts with a "(", "[", "/", "+" or "-", it is most likely to be parsed together with the previous statement.Some programmers prefer to keep a semicolon in front of the statement so that even if the previous statement is modified and the semicolon is mistakenly deleted, the current statement will parse correctly. But there are two exceptions.The first exception is that there can be no line breaks between retur

I. Object-oriented technology in JavaScript (solving how to use the fatigue in JS programming)1. Examples of collection classesThe collection represents a non-repeating unordered collection. Two basic methods: A. Add to Collection B. Whether in the collection.　　　　Reference: p218 set.js2. Enumeration examplesEnumeration represents a limited set of values.　　　　Examples of PokerTwo. Standard conversion method1. toString (); Tolocalstring ();2. ValueOf ();

1. Method borrowing is "inheritance", and the prototype method in one class is used in another class. p227 Generic Object2. Private state:"The variable is closed in an anonymous function to simulate the private variables", these "variables" can only be accessed by the instance method of the class; 3. Construct refactoring:4. Factory method5. Subclass: "Method Chain", "constructor chain", "combination"6.201508110842_ "JavaScript authoritative

I. Classes and modules1. The implementation of the class is based on the prototype inheritance mechanism.Two. Classes and prototypesThree. Classes and constructors1. The constructor is used to initialize the newly created object.2. Use new, so the constructor simply initializes the object state.3. Building a constructor is defining the class, so the first letter is capitalized .4.Four. Identification of constructors and classesFive. Constrctor Properties1. The value of the constructor property i

JavaScript authoritative guide version 4th is a Javascript tutorial book with good sales and reputation. Because it is a Java rhinoceros on its cover, therefore, this book has another loud nickname called "Rhino book". If you are a Javascript programmer or want to learn javascript