JavaScript

G represents global matchM stands for multi-line matchingI stands for case-insensitive matching^ matches the starting position of the input string$ matches the end position of the input string* matches the preceding subexpression 0 or more times.

Sometimes it may be too long to display a paragraph of text, affecting the display of our page. If only English, then we can use the string.substring (start, end) function is sufficient. But usually we all encounter both English and Chinese

On a basic level, it is important to understand how JavaScript timers work. The execution of timers is often different from our intuitive imagination, because the JavaScript engine is single-threaded. Let's get to know how the following three

Disclaimer: Web logs reproduced from NanyiThe first and second sections of this series introduce JavaScript module prototypes and theoretical concepts, and today we show you how to use them in combat.I am using a very popular library

We know that to create an object we can use the following code:var user = new Object ();User.Name = ' Programming prodigal ';User.age = 22;user.address = ' Chengdu, Sichuan ';Creating objects in this way is simple and intuitive, and is the most

7 An array index is just a special type of object property name A=new Array () [] a[-3.15]= "I m-3.15" "I m-3.15" A [] A[-3.15] "I m-3.15" a['-3.15 '] "I m-3.15" A[3]=function () {Console.log (' This is a function! ')} function () {Console.log ('

Javascript Small brackets have 5 semanticsSemantic 1: Parameter table when function declaration1 function func (arg1, arg2) { 2 // ... 3 Semantic 2: Used in conjunction with some statements to achieve certain qualifiers  1 //use with for2

The question is raisedFirst look at an example: var name = ' laruence '; function echo() { Alert(name); var name = ' Eve '; Alert(name); Alert(age); } Echo(); What is the result of the operation?The above question,

Anjularjs in the two-way binding is very interesting, the following imitation of its source code, wrote a simple version, is the poor robustness of the point.650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/52/98/wKiom1RkoE6CEn6rAAA6mIc19S0

Event Browser support Describe OnClick ie3| n2| O3 Mouse click event, multi-use in the scope of an object control mouse click OnDblClick ie4| n4| O Mouse Double-click event

I. Basic types and reference types A primitive type value refers to a simple data segment, whereas a reference type value refers to an object that may consist of multiple values. When you assign a value to a variable, the JavaScript

Javascript encrypts and decrypts the parameter code in the url. Today, when I was working on an old project, I encountered a need to encrypt and decrypt the parameters in the url in javascript. I found this useful code from the Internet: Copy

Notes on javaScript object-oriented and prototype JavaScript is a special language. ECMAScript does not have the class concept and is different from other object-oriented languages, its objects are also different from those in class-based languages.

Js obtains the summary of the last method of the string. Method 1: Use the charAt method of the String object The charAt () method returns characters at a specified position.   The Code is as follows: Str. charAt (str. length-1)   Please note that

Cause of jsp garbled characters under tomcat (below) Series of articles: Causes of jsp garbled characters in tomcat In the previous article, I mainly explained the file encoding, page encoding, how to decode, and analyzed the role of tomcat. Here I

Css3 allows you to easily implement animation Transitions and css3transitions.   In software development, web front-end animation is an indispensable special effect. Before css3, most animations were implemented using reliable javascript, the steps

Json array parsing instance 1. Introduction to JsonCPP Jsoncpp is one of the common parsing libraries for c ++ to parse JSON strings. Common classes include: A) Json: Value can represent all types in, such as int, string, object, array, etc. For

HTML Tag nesting rules and html Tag nestingAbstract: Recently, I found that some colleagues wrote too many page code nesting, and some of them were not nested, such as content . Although the function is implemented, it still has some impact on

JavaScript ópaññean» comment 'comment 7 JavaScript öð µäê × ×é Ç çöö  ¸ Ä äî £. Î Ò Ç çoré Ò Ê ¹ Ó Ø ¼ Array () please refer to below? ° then please refer to below? 'then? Hello World 'Óé ~~~~~~~~~~~~» ~~~~~~~~**************************************

We recommend that you use JavaScript to implement inheritance in the best way. The simplest way to implement JavaScript inheritance is the call method (or the apply method) and the prototype chain method. However, both methods have defects, and