JavaScript

String.Length Function: This is actually an attribute of the String class, but since JavaScript treats both Full-width and Half-width as a single character, there may be a problem in some practical use, and now we are using prototype to make up for

Almost 20 years ago, when JavaScript was born, it was just a simple web scripting language. If you forget to fill in the username, it jumps out a warning. Today, it becomes almost omnipotent, from the front end to the back end, with a variety of

As Web sites become "Internet apps," JavaScript code embedded in Web pages is growing larger and more complex. Web pages are more and more like desktop programs, need a team division of work, progress management, unit testing and so on ...

Passwords are an essential tool in our life and work, but an unsafe password may cause unnecessary loss. As a web designer, if we can make a security assessment of the password entered by the user in the Web page and display the corresponding

ECMAScript is an extension and support for object-oriented JavaScript through ECMA-262, a standardized scripting language. Object-oriented languages have the ability to support the reuse of classes and methods and properties in classes,

1. Save Jquery sinature file as Jquery.signature.js: /* http://keith-wood.name/signature.htmlSignature plugin for jQuery UI v1.1.0.Requires excanvas.js in IE.Written by Keith Wood (kbwood{at}iinet.com.au) April 2012.Available under the MIT (Https://

The cookie plugin in jquery is too simplistic, just a simple encapsulation of cookies, and a lot of work is needed in practical applications. So always want to do an enhanced cookie plug-in, more convenient to use. From a demand point of view, in E-

The JavaScript language is object-based (object-based) rather than object-oriented (object-oriented). It is said to be an object-based language, mainly because it does not provide many features such as abstraction, inheritance, overloading, and so

Adding your own label on the Douban is a common effect, and today it's a simple demo. Due to the problem of time I do not many principles, we can try to operate several times can understand the principle of it. The effect of Jsfiddle is as follows:

1. Objects and Arrays General statement Objects and arrays are two important data types in JS, and they are different from basic data types such as strings and numbers: they do not represent a single value, they represent a collection of values.

function provides a common and convenient ability for program designers. Usually in a complex program design, always according to the function to be completed, the program is divided into some relatively independent parts, each part of the writing a

Syntax for indexOf methods in javascript: Thestring.indexof (Substring,[n]). It looks for a routed substring in the specified string object, and if you specify parameter n, it can start the search forward (from left to right) from the specified

The sort function method in JavaScript is to return an Array object that has been sorted by an element. How to use: 　　arrayobj.sort(sortfunction) Where Arrayobj is a required option. Any Array object. Sortfunction is optional. is the name of the

Transferred from: http://www.jianshu.com/p/a81692ad5b5d typeof obj and obj instanceof TypeIn JavaScript, we often use typeof obj and obj instanceof type to identify types, so what is the difference between the two? Take a look at a couple of

The observer pattern, also known as the publish-subscribe pattern or message mechanism, defines a dependency relationship that solves the coupling between the subject object and the Observer's function.By using the observer pattern, we can solve the

first, Show and hide the animation effect1.hide (animation duration, easing used to specify the transition effect, the completion of the animation call function);$ ("p"). Hide ("swing", function () {statement body});2.show (animation duration,

What is design mode? It means that for similar problems, we can use the same ideas and methods to solve them, and this universal thought and method is the design Pattern. Learning Design patterns can help us to quickly search for a clear idea when

After HTML5 is finished, I will go to the ground of the world... The first study involving H5 is completely new. Although tired every day, it is truly unprecedented, and I dare not slack it. I really don't want to waste time. As of today, we have

Learn about floating and BFC collation and floating bfc collationThis is my understanding and arrangement after learning. If you have any errors or questions, please correct them and I will keep updating them!   Document Stream concept:In html,

CSS learning Summary: Floating, locating, parent container collapse, css collapse It has been three months since I started to contact the front-end. After so long learning, my skills are still average. I participated in IFE2017 a few days ago, the