JavaScript

AtEnd functions in JavaScriptIs the AtEnd method: Returns a Boolean value that indicates whether the enumeration operator is at the end of the collection.How to use it isMyenum.atend ()Note: The mandatory option MyEnum parameter is any enumerator

JavaScript's scope has always been the front-end development of the more difficult to understand the knowledge point, for the scope of JavaScript mainly remember a few words, go all over the world are not afraid.One, "no block-level scope in

The blink function in JavaScript is to place HTML tags at both ends of the text in a String object. The blink () usage is:Strvariable.blink ()Required option The Strvariable parameter is any String object or literal that can be.The following example

# This point is not determined when the function is created. It can be determined only when it is executed.# # 1, here's this point to Window Window.fn (); So This.user is undefined.function　　fn () { var user= ' Chasing the Dreamer '; Console.log

Abstract: The main content of this article is the source of the third edition of JavaScript Advanced programming, because the second time after reading, according to the norms in the book, found that they did not do well in the work. So this article

Event modelJavaScript events make Web pages interactive and interactive, and we should understand them in order to develop work, in a variety of browsers, JavaScript event model is divided into 3 kinds: Original event model, DOM2 event model, IE

Start adding:1. Use the function definition as the object's property, called the object method.2. The point of this is determined by the context in which the function is called (context), not by the context in which the function is defined.3.

This article reproduces address http://www.cnblogs.com/zhangpengshou/archive/2012/07/19/2599053.html//An extension to date that converts date to a string of the specified format//the Month (m), Day (d), hour (h), Minute (m), second (s), quarter (q)

One, iterator pattern definitionThe iterator pattern provides a way to sequentially access individual elements in an aggregated object without exposing the internal representation of the object.In most of the current languages, the iterator pattern

URL: Uniform Resource Locator (Uniform Resource Locator, URL)The complete URL consists of the following parts:Scheme://host:port/path?query#fragmentScheme: Communication protocolCommon Http,ftp,maito, etc.Host: HostsThe server (computer) domain Name

When the amount of data is not very large, and there is no back-end corresponding function interface, some simple search function is basically the front-end to achieve, just recently used, wrote a, paste out and share with you:Function

The Eval function in JavaScript is to check the JavaScript code and execute it. How to use:Eval (codestring)The mandatory option codestring parameter is a string value that contains valid JScript code. This string will be parsed and executed by the

1 Memory and performanceIn JavaScript, the number of event handlers added to a page is directly related to the overall performance of the page :First, each function is an object, consumes memory , and the more objects in memory, the worse the

1 Memory and performanceIn JavaScript, the number of event handlers added to a page is directly related to the overall performance of the page :First, each function is an object, consumes memory , and the more objects in memory, the worse the

1 Basic Concepts 1.1 eventsThe interaction between JavaScript and HTML is implemented through events.　　An event is a specific interaction moment that occurs in a document or browser window, in which handlers can be registered so that when an event

Specification descriptionWhen the array is called as a function rather than as a constructor, it creates and initialises a new Array object. Thus the function call Array (...) is equivalent to the object creation expression new Array (...) with the

HTML5 semantic tag practices (blog pages) and html5 Semantics A blog page is modeled after HTML5 + CSS3. The overall effect layout is as follows: The page layout is based on html5 elements. Therefore, it is important to familiarize yourself with

Js Outputs Data exactly to the n-digit code after the decimal point, js outputs the decimal point Write two methods to output the data num to the nth digit after the decimal point. The specific content is as follows: 1. Math. pow (10, n );2. With

Json object and array and simple implementation method for converting to js object, jsonjs JSON syntax rules JSON syntax is a subset of the syntax of JavaScript Object Notation. • Data in name/value pairs• Data is separated by commas (,).• Brackets

NodeJs-Quick Start Guide and Quick Start Guide About NPM: Npm is a node. js package management and distribution tool. It allows javascript developers to share code and code snippets more easily, and it is convenient, convenient, and simple to manage