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JS prototype chain and inheritance is the focus of JS, so we use the following three examples for detailed explanation. First define an object obj, the object's prototype is obj._proto_, we can use the getprototypeof in ES5 to query the prototype

Objective Recently looking at some JavaScript asynchronous things, but due to limited time, just look at the beginning, had to stop halfway. In order to facilitate the future of the search for a return, it recorded a little experience, if it can

The problem of copying objects is often encountered in the actual situation. For example, when you are working on a multiple structured data store or call in a project, you will be manipulating objects (JSON), and different operations are defined

JavaScript in the Web application development front-end technology and back-end technology logic and run a larger proportion of the share. In order to help maintain and iterate prior logic and modularity, the MVC pattern has become increasingly

Backbone.events Overview The backbone.events object contains methods that help observer design patterns and a variable observer pattern that invokes pub/sub. These features allow different classes of objects (JavaScript objects) created by backbone

Backbone constructors I say backbone is simple because backbone only four constructors can be typically instantiated (basically, they are first inherited or subcategory). These four constructors include: Backbone.model = function (attributes,

Backbone.router () overview A backbone route is a JavaScript string, similar to the URL path name in traditional knowledge. This string-like pathname is the property name (or reference-named function) of a function that is invoked when a URL in the

Use Backbone.noconflict () to store and create a special (that is, custom namespace) references to backbone When backbone is parsed by a browser, the first thing backbone does is to store a value that is referenced to the backbone contained in the

Introduction to Backbone.model A backbone model can be likened to a form structure, a column with a header similar to a form, and a row of data similar to a form. Backbone.model object defines column labels, and then uses predefined and custom

The last one was sent out after a lot of replies, in this first thank you for your enthusiastic supporters! Some recommend the third party framework, such as In.js, Requriejs, Sea.js, lab.js, etc. This broaden the horizon, previously only know

Speaking of operators, basically all kinds of programming languages will be involved, the use of similar methods. Here's a simple collation of JavaScript here today. In general, operators are still relatively much more, can be divided into the

Morse code is a time and time to break signal codes, in different order to express different English letters, numerals and punctuation, was invented by the American Samuel Morse in 1836.Each character (letter or number) corresponds to a different

Template Method Mode description Definition: Defines the skeleton of the method operation, extends some concrete implementations into subclasses, and uses specific implementations that do not affect the skeleton's behavioral steps! Description: A

1. Math Object1.1 Introduction The Math object, which is a mathematical object, provides a mathematical calculation of the data, such as acquiring absolute value, rounding up, and so on. No constructors, cannot be initialized, provides only static

Agent Mode description Description: As the name implies is to use a class to replace another class to perform the method function, this pattern is somewhat similar to the decoration pattern, not the same, the proxy mode is to initialize the proxy

Decorator Mode description Description: A class to dynamic to another class of functional objects before or after the modification, to add some additional functions; This is the decoration of the function of a class object, the decorated class with

JavaScript scopes are the accessible scope of variables and functions. 1. Variable Scope In JavaScript, variable scopes are divided into global scope and local scope. Global scope You can define a variable with global scope Anywhere 1.

at the time of project development, the scope of global scope and Directive local scope is not clear enough, global scope and Directive local scope communication is not well grasped, here is the global scope and Directive the use of local scope to

One, the object ECMA-262 defines an object as an unordered collection of attributes that can contain basic values, objects, or functions. So the object in JS is a set of key-value pairs. In object-oriented languages, you create any number of

In the array operation will often encounter the problem of removing duplicates, the following is a brief introduction to the method of array, and its execution efficiency Method OneUsing two loopsPrinciple: Take the current and the back of the