The principle and precaution of JavaScript injection vulnerability

Initial Contact:After initial exposure to JavaScript injection vulnerabilities, if you do not carefully analyze and extract some of the patterns that occur in the mechanism of the vulnerability, you will not be able to quickly discover all the

"JavaScript" uses the sort () function and the file fragment implementation of the table's front-end ordering, compatible with IE6 primitive ecology

Table sorting in the application of a lot of web pages, especially some of the information system output a dense table for people to see, customers will certainly put forward the requirements of table sorting. Many people think that table sorting

Javascript-Object-oriented inheritance (1).

ECMAScript only supports inheritance, does not support interface implementations, and implements inheritance in a way that relies on the prototype chain to completeThe structure of the relationship between the prototype + object constructs, shaped

Is the return line also wrong? Design flaws in JavaScript return

Today and colleagues saw a simple JavaScript code, but was tortured crazy, a long time to find the problem.Code Listing 1:script>var gisService = (function(window) { return { name:function () { alert(1); } };

javascript-anonymous function, closure basic finishing (1).

anonymous functions1 //assigning anonymous functions to variables2 varbox=function()3 {4 return' Lee ';5 }6 7 //anonymous functions self-executing to execute anonymous functions8(function()9 {TenAlert (' Lee '); One })();

JavaScript Regular Expressions

/*Review Var obj= new number (2), alert (number.min_value), var num = new Number (22E3), alert (num), alert (Isfinite (num));// Determine if the specified range is exceeded var person={fname: "John", lname: "Doe", Age:25};var txt= ""; for (x in

Questions about JavaScript memory leaks

In recent days, I've seen some articles about JavaScript memory management, which is simpler than the Java JVM's memory management.In the process of learning, found that many netizens talked about circular references, saying that circular references

JavaScript in-depth understanding of JS closures

Closures (closure) are a difficult and unique feature of the JavaScript language, and many advanced applications rely on closures. the scope of a variableTo understand closures, you must first understand the special variable scope of JavaScript.The

JavaScript prototype Inheritance principle

For object-oriented basic syntax I'm not going to repeat this, for a friend who is not familiar with object-oriented can see the article "Creating Advanced Web applications using object-oriented technology."Prototype and [[prototype]]In the premise

Use of JavaScript Regular expression modifiers appended global (/g)

The/g modifier represents a global match, finding all matches rather than stopping after the first match is found. Let's take a look at some classic code:var str = "123#abc"; var Noglobal =/abc/i;//non-global matching mode console.log (Re.test (str))

The essence of JavaScript language reading notes two

This section is a summary of the fourth chapter of language, and the essence of the comb, because this chapter is mainly to explain the function of this JS first-class citizens, so specifically to take out a section to hope to put this part to say

About my new skin, new skin

About my new skin, new skin I have always felt that my blog Park's skin was a little ugly, but it was delayed due to various reasons (well, it was actually because of laziness, and I was afraid of my own aesthetics, changed than the original can

A deep understanding of the JavaScript series (33): detailed explanation of the Strategy Mode of the Design Mode

A deep understanding of the JavaScript series (33): detailed explanation of the Strategy Mode of the Design Mode This article mainly introduces a deep understanding of the JavaScript series (33): detailed explanation of the policy pattern of the

Analysis on the implementation principle of Javascript animation and javascript Animation

Analysis on the implementation principle of Javascript animation and javascript Animation Assume that an animation function is required to change the width of a div from 100px to 200px. The written code may be as follows:Copy codeThe Code is as

Understand the modular development of Javascript and the modularization of javascript

Understand the modular development of Javascript and the modularization of javascript Mr. A is A front-end engineer of A startup team responsible for compiling the project's Javascript program. Global variable conflict Based on your experience, Mr.

In-depth analysis of Cookie security issues

In-depth analysis of Cookie security issues This article analyzes the Cookie security issues and Cookie interception methods based on your own experience, and recommends them to your friends for reference.    The purpose of Cookie is to bring

List all events supported by JQuery's ON () method

List all events supported by JQuery's ON () method This article mainly introduces all events supported by JQuery's ON () method. This article lists all events supported by the ON () method. It is an authoritative source code from jQuery1.8.3, for

Introduction to common JavaScript template Engines

Introduction to common JavaScript template EnginesThis article mainly introduces common JavaScript template engines. This article introduces eight common JavaScript template engines and focuses on artTemplate template engines. For more information,

Js enables switching between image slides that can be called multiple times on the same page. js slides

Js enables switching between image slides that can be called multiple times on the same page. js slides The example in this article describes how js achieves switching between image slides that can be called multiple times on the same page. Share it

In-depth analysis of Cookie security issues, in-depth analysis of cookies

In-depth analysis of Cookie security issues, in-depth analysis of cookies The purpose of Cookie is to bring convenience to users and add value to websites. In general, it will not cause serious security threats. A Cookie file cannot be executed as

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