JavaScript

I say the day is even more, then .... Start with the buffer layout information today!-------------------2016-7-22 21:09:12---------------------------14, reduce the number of query layout information, the query will be assigned to the local variables

This piece of learning for a while, but today to see the interview, let's talk about the drawbacks of the cookie and the difference between Web storage and cookies, unexpectedly still do not know where to start, so, or to self-carefully comb it

First, the existence form of JavaScriptWay One: ... Way two: ... About JS Storage location interpretation, first JS code can be placed in the HTML anywhere including head and body, but if JS loaded content is large and put in the head part,

The previous 43 and 44 discussed the enumeration of attributes, but none of them completely solved the problem of property lookup for Zhongyuan pollution. Take a look at some of the following dictionary operations‘zhangsan‘ in

Prototype chain is the most important way to inherit,Principle: Each class (constructor, JS function) has a prototype attribute (prototype) point to a prototype object, the prototype object has a constructor (constructor), it refers back to function,

In JavaScript, a class has static and instance properties, as well as static and instance methods.Class Property (static property): Direct access through the class, without the need to declare an instance of the class to accessclass method (static

DOM Scripting related issues: smooth degradation, backward compatibility, separation of JavaScript.I. Steady degradationIf JS is disabled, can the basic function be implemented?Two. Separating JavaScript1. Add the event handler function:A.

Create Day Date Object When you call the constructor of date without passing parameters, the newly created object gets the current date and time by default. var now = new Date (); Create a specific date and time object Date.parse (

HTML5 offline storage and HTML5 offline storage When a user is not connected to the Internet, the user can normally access the site or application and update the cached files on the user's machine when the user is connected to the Internet.Principle:

Less syntax (1) variables and extend, lessextendAbstract: As an extension of CSS, Less is not only fully compatible with CSS syntax, but also uses CSS syntax for new features. This design makes it easy to learn Less, and you can roll back to CSS at

Details about the benefits of using prototype to define methods in js, jsprototype Often in front-end interviews or communicating with other colleagues, when talking about constructing constructors in JS, it is best to use a prototype: Define

The implementation of js XML file operations is compatible with IE, FireFox, and xmlfirefox. Xml has been used in recent projects. You need to save a series of data to the xml file before installing the product, and write the data to the database

How to Understand JS prototype chain and JS prototype chain Before talking about the prototype chain, we must first understand the relationship between user-defined functions and functions. What are the links between constructors, prototypes, and

HTML (css style specifications) and htmlcss style specificationsCSS style specifications 1. class selector 2. Tag Selector 3. id Selector 4. CSS style sub-Selector   Class Selector 1. fixed structure that must be backed up to become CSS style labels.

JavaScript inheritance based on prototype chain, javascript prototype Javascript is not an object-oriented language and does not provide traditional inheritance methods, but it provides a prototype inheritance method that uses its own prototype

Detailed explanation of iteration and merge methods in Javascript, and javascript merge Iteration Method In Javascript, iteration methods are especially important. In many cases, there are actual requirements. javascript provides five Iteration

JavaScript converts Arabic numbers and Chinese numbers to each other. javascript Arabic Arabic numerals to Chinese numeralsFeatures of Chinese numbers: Each counting number is followed by a right digit, which can be 10, or. Take "Ten Thousand"

Examples of JavaScript closures and javascript instances I. Charging 1. Everything (reference type) is an object, and an object is a set of attributes. 2. A function is an object, but the function is not the same as an array-you can say that an

JS method to determine whether a string variable contains a specific string. js string JS implementation method for determining whether a string variable contains a certain string VarCts = "bblText"; if (Cts. indexOf ("Text")> 0) {alert ('cts

Summary of necessary JS debugging skills and js debugging Summary Debugging code is indispensable for any programmer, whether you are a master or a cainiao. In general, debugging programs are implemented after code writing or when Bugs are modified