Despite the popularity of JavaScript for client-side web applications, there is a lack of effective software tools supporting JavaScript development and testing. The dynamic characteristics of JavaScript pose software engineering challenges such as program understanding and security. One important feature of JavaScript is that its objects support flexible mechanisms such as property changes at ...

JavaScript is one of the most popular programming languages on the web. Despite the language popularity and the increasing size of JavaScript systems, there is currently a limited number of visualization tools that can be used by developers to comprehend, maintain, and evolve JavaScript software. In this paper, we introduce JSCity, an implementation in JavaScript of the well-known Code City sof...

JavaScript is a client-side scripting language for the web and has become increasingly popular with the introduction of AJAX. JavaScript is a dynamic-typed language and is closer to a functional language than a procedural language. Runtime errors can occur in JavaScript due to invalid type conversions and accesses to undefined members of objects. One solution is the use of type systems to valid...

We introduce JuS (JavaScript under Scrutiny), a first step towards a static-analysis tool for JavaScript based on a program logic in the style of separation logic. In particular, we focus on reasoning automatically about the JavaScript variable store. Because of prototype-based inheritance and with statements, even reasoning about variables is not trivial in JavaScript. We evaluate our tool on ...

Numerous tools have been developed to aggressively block the execution of popular JavaScript programs in Web browsers. Such blocking also affects functionality of webpages and impairs user experience. As a consequence, many privacy preserving tools that have been developed to limit online tracking, often executed via JavaScript programs, may suffer from poor performance and limited uptake. A me...

These days, most of companies expanding their business horizon through dynamic web sites based on Web 2.0 concept. The JavaScript is a key choice of web developers to build sophisticated dynamic web 2.0 application such social network site, blogs, e-commerce websites. On the other hand vulnerable JavaScript code is also exploited by the hackers to launch the attacks. Hacker may tamper the JavaS...