Add a Trim,ltrim,rtrim method to a String object in JavaScript

Using the prototype property of each object in JavaScript, we can add our own methods and properties to the built-in objects in JavaScript.Here's how we use this property to add three methods to a String object: Trim,ltrim,rtrim (acting like a

A summary of 9 ways to implement JavaScript inheritance

This article mainly introduced the JavaScript 9 kinds of inheritance realization way induction, this article explained the prototype chain inheritance, the prototype inheritance (not the prototype chain), the temporary constructor inheritance, the

Deep understanding of the closure characteristics of JavaScript

A netizen asked a question, such as the next HTML, why click All the paragraph p output is 5, instead of alert out corresponding 0,1,2,3,4. Closure Demo Products 0 Products 1 Products 2 Products 3

Web Development Designer's more puzzling JavaScript

JavaScript, the world's most popular programming language, has been labeled as a nightmare for Web development designers, and while the real nightmare is the DOM API, the scripting language that has been exploited by a large number of developers and

JavaScript and Flash Communication

Javascript Note: Slightly modified, mainly some very elementary operation; And a lot of similar articles, but this one is authoritative. Here are some examples of direct communication between Flash and HTML files that use JavaScript, with each

File operations for JavaScript

Javascript JavaScript is a Web page production can not be separated from the scripting language, relying on it, a Web page content is lively, full of vitality. But maybe you haven't found and applied some of its more advanced features? For example,

Zhang Xiaoxiang: JavaScript Tutorial notes: HTML Basics (iii)-url, image labels, image maps

HTML Basics |javascript| Notes | tutorials   Url If the FTP server is using the default port 23, it is also like HTTP for 801, do not write; The URL is case sensitive; If the base URL is not explicitly set, the relative URL uses the directory path

MD5 encrypted JavaScript Implementation example

/* MD5 message-digest Algorithm-javascript ' Modification HISTORY: ' 1.0 16-feb-2001-phil Fresle (sales@frez.co.uk)-Initial Version (vb/asp code) ' 1.0 21-feb-2001-enrico Mosanghini (erik504@yahoo.com)-JavaScript porting */ function MD5 (smessage) {

Implementation of the Trim method in JavaScript

The string class in Java has a trim () to remove space characters before and after a string. jquery also has the trim () method to remove strings before and after a character variable.However, there is no corresponding trim () method in JavaScript.

Detailed description of extended instances of new features in ES6, and detailed description of new feature instances in es6

Detailed description of extended instances of new features in ES6, and detailed description of new feature instances in es6 This article describes the function extension of the new features of ES6. We will share this with you for your reference. The

Resolution, pixel, and PPI, resolution, pixel PPI

Resolution, pixel, and PPI, resolution, pixel PPI Screen SizeIt refers to the length of the diagonal line of the screen, generally in inches, 1 inch (inch) = 2.54 cm (cm ). In the traditional sense, the photo size is also the concept. Therefore,

Second-level nesting of routes in angularjs ui-router, angularjsui-router

Second-level nesting of routes in angularjs ui-router, angularjsui-router Questions about nested routing in ui-router 1. First, our page level is   Among them, main.html is our main page. We need to manage routes in a unified manner in main.html. In

JS online games-(simulated city webgame) provides some examples to download _ javascript skills

JS web games-(simulated city webgame) provides some examples to download a lot of simulated city systems online, but it seems that most of them are developed in FLASH. Currently, the core scripts such as pathfinding are implemented using JS. Most

How to open, edit, and create Office doc_javascript on a web page

How to open, edit, and create an Office document on a web page how to open, edit, and create an Office document on a web page Word is opened in IE at the link of idea document. Many people may be interested in this question. Therefore, write a blog

Code _ JavaScript tips for getting the class name of a javascript user-defined class

We know the code for getting the class name of a JavaScript user-defined class, although JavaScript is an object-based language. However, with its prototype feature, we can fully implement a very sexy OO compiling framework. Here we can look at the

Common reference material (manual) download or link _ javascript skills

Download frequently used reference materials (manuals) or download some frequently used reference materials (manuals) or links below: -- Chinese manual series (Classic products )------------------------------------------------- W3schools HTML

JavaScript object-oriented-inheritance based on prototype chain

One of the characteristics of object-oriented is inheritance. Most object-oriented programming languages support two inheritance Methods: interface inheritance and implementation inheritance. Interface inheritance only inherits the method signature,

Difference between the forin loop of js and the foreach loop in java

This article mainly introduces the differences between the forin loop of js and the foreach loop in java. The example analyzes the use skills of the forin loop of js and explains the differences between the use of the foreach loop and that of Java,

JavaScript advanced (7) differences between the substr and substring methods for intercepting strings in JS

If the length is 0 or negative, an empty string is returned. If this parameter is not specified, the substring will continue to the end of stringvar. Differences between the substr method and the substring method of JS string Truncation Returns a

Introduction to the JavaScript framework (xmlplus) component (3) TextBox)

Xmlplus is a JavaScript framework used to quickly develop frontend and backend projects. This article mainly introduces the text box of the xmlplus component design series, which has some reference value. If you are interested, refer to xmlplus as a

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