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28th IEEE/ACM International Conference on Program Comprehension (ICPC)

作者： Dias, Martin Orellana, Diego Vidal, Santiago Merino, Leonel Bergel, Alexandre Univ Chile Santiago Chile Consejo Nacl Invest Cient & Tecn ISISTAN Buenos Aires Argentina Univ Stuttgart Stuttgart Germany Univ Chile Dept Comp Sci Santiago Chile

ISBN: (纸本)9781450379588

To characterize the building blocks of a legacy software system (e.g., structure, dependencies), programmers usually spend a long time navigating its source code. Yet, modern integrated development environments (IDEs) do not provide appropriate means to efficiently achieve complex software comprehension tasks. To deal with this unfulfilled need, we present Hunter, a tool for the visualization of javascript applications. Hunter visualizes source code through a set of coordinated views that include a node-link diagram that depicts the dependencies among the components of a system, and a treemap that helps programmers to orientate when navigating its structure. In this paper, we report on a controlled experiment that evaluates Hunter. We asked 16 participants to solve a set of software comprehension tasks, and assessed their effectiveness in terms of (i) user performance (i.e., completion time, accuracy, and attention), and (ii) user experience (i.e., emotions, usability). We found that when using Hunter programmers required significantly less time to complete various software comprehension tasks and achieved a significantly higher accuracy. We also found that the node-link diagram panel of Hunter gets most of the attention of programmers, whereas the source code panel does so in Visual Studio Code. Moreover, programmers considered that Hunter exhibits a good user experience.

关键词： Software visualization Software comprehension javascript

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Adapter Implementation into Mozilla WebThings IoT Platform Using javascript 30

Adapter Implementation into Mozilla WebThings IoT Platform U...

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30th International Conference on Cybernetics and Informatics (K and I)

作者： Stark, Erich Schindler, Frank Kucera, Erik Haffner, Oto Kozakova, Alena Pan European Univ Fac Informat Bratislava Slovakia Slovak Univ Technol Bratislava Fac Elect Engn & Informat Technol Bratislava Slovakia

ISBN: (纸本)9781728143811

The aim of this work was to explore the possibilities of open technologies for the creation of IoT systems such as Mozilla IoT in javascript. The work dealt with open source Things Gateway platform. The development behind Things Gateway is done by Mozilla in collaboration with some volunteers. They strive is to provide frameworks and a new kind of application layer that would facilitate the programming and management of smart devices connected to the IoT system. The paper describes emerging standard such as Web of Things. In the last section of the paper is explained how to create an adapter for a new device using the Things Framework, that runs on the Raspberry Pi computer.

关键词： webthings gateway webthings framework mozilla iot gateway web of things wot iot internet of things raspberry pi javascript nodejs

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Exploring the Security Awareness of the Python and javascript Open Source Communities 17

Exploring the Security Awareness of the Python and JavaScrip...

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IEEE/ACM 17th International Conference on Mining Software Repositories (MSR)

作者： Antal, Gabor Keleti, Marton Hegedus, Peter Univ Szeged Szeged Hungary MTA SZTE Res Grp Artificial Intelligence Szeged Hungary

ISBN: (纸本)9781450375177

Software security is undoubtedly a major concern in today's software engineering. Although the level of awareness of security issues is often high, practical experiences show that neither preventive actions nor reactions to possible issues are always addressed properly in reality. By analyzing large quantities of commits in the open-source communities, we can categorize the vulnerabilities mitigated by the developers and study their distribution, resolution time, etc. to learn and improve security management processes and practices. With the help of the Software Heritage Graph Dataset, we investigated the commits of two of the most popular script languages Python and javascript - projects collected from public repositories and identified those that mitigate a certain vulnerability in the code (i.e. vulnerability resolution commits). On the one hand, we identified the types of vulnerabilities (in terms of CWE groups) referred to in commit messages and compared their numbers within the two communities. On the other hand, we examined the average time elapsing between the publish date of a vulnerability and the first reference to it in a commit. We found that there is a large intersection in the vulnerability types mitigated by the two communities, but most prevalent vulnerabilities are specific to language. Moreover, neither the javascript nor the Python community reacts very fast to appearing security vulnerabilities in general with only a couple of exceptions for certain CWE groups.

关键词： software security vulnerability Python javascript CWE CVE

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基于javascript和前端知识的日语就业信息库探索

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中文科技期刊数据库（全文版）自然科学 2023年第6期 91-94页

作者：王萌巨子航欧阳维晰大连大学·日本语言文化学院·软件工程学院辽宁大连116000

在信息时代,数据通常以几何级数增加,这给现在的日语学生增加了很多选择上的困难。相关专业的学生和研究生往往对本专业的知识缺乏精炼和系统的了解。这就间接导致了市场对就业人才的需求与大学教育之间的不匹配。另外学生需求与就业市... 详细信息

在信息时代,数据通常以几何级数增加,这给现在的日语学生增加了很多选择上的困难。相关专业的学生和研究生往往对本专业的知识缺乏精炼和系统的了解。这就间接导致了市场对就业人才的需求与大学教育之间的不匹配。另外学生需求与就业市场存在一定信息差,如何缩小信息差逐渐成为高校教育的重点。而信息库旨在为学生提供更多这方面的信息。是学生个性化服务的一次探索。

关键词：数据大学教育信息库 javascript

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Of javascript AOT Compilation Performance

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PROCEEDINGS OF THE ACM ON PROGRAMMING LANGUAGES-PACMPL 2021年第ICFP期5卷 1–30页

作者： Serrano, Manuel Univ Cote dAzur INRIA Inria Sophia Mediterranee 2004 Route Lucioles F-06902 Sophia Antipolis France

The fastest javascript production implementations use just-in-time (JIT) compilation and the vast majority of academic publications about implementations of dynamic languages published during the last two decades focus on JIT compilation. This does not imply that static compilers (AoT) cannot be competitive;as comparatively little effort has been spent creating fast AoT javascript compilers, a scientific comparison is lacking. This paper presents the design and implementation of an AoT javascript compiler, focusing on a performance analysis. The paper reports on two experiments, one based on standard javascript benchmark suites and one based on 18 new benchmarks chosen for their diversity of styles, authors, sizes, provenance, and coverage of the language. The first experiment shows an advantage to JIT compilers, which is expected after the decades of effort that these compilers have paid to these very tests. The second shows more balanced results, as the AoT compiler generates programs that reach competitive speeds and that consume significantly less memory. The paper presents and evaluates techniques that we have either invented or adapted from other systems, to improve AoT javascript compilation.

关键词： javascript Scheme AOT JIT Compiler Dynamic Languages

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javascript技术在动态网页数据库技术中的应用研究

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电脑知识与技术 2022年第33期18卷 64-67页

作者：曲小纳李俊玲西安思源学院陕西西安710038

随着5G时代的到来,信息化技术的迅速发展,人们的生活方式发生了极大的变化。在新5G网络时代的大背景下,各行各业都对网站设计的要求提供了全新的需求,而传统的静态网站设计已无法适应新网络时代的要求,所以动态网站设计就成了当前网站... 详细信息

随着5G时代的到来,信息化技术的迅速发展,人们的生活方式发生了极大的变化。在新5G网络时代的大背景下,各行各业都对网站设计的要求提供了全新的需求,而传统的静态网站设计已无法适应新网络时代的要求,所以动态网站设计就成了当前网站设计的潮流。该文将针对Java语言的特性、MySQL数据库、javascript脚本语言在动态网页数据库技术中的应用进行说明。

关键词： javascript 动态网页数据库网页设计

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JSCleaner: De-Cluttering Mobile Webpages Through javascript Cleanup 20

JSCleaner: De-Cluttering Mobile Webpages Through JavaScript ...

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29th Web Conference (WWW)

作者： Chaqfeh, Moumena Zaki, Yasir Hu, Jacinta Subramanian, Lakshmi NYU Abu Dhabi Abu Dhabi U Arab Emirates NYU New York NY 10003 USA

ISBN: (纸本)9781450370233

A significant fraction of the World Wide Web suffers from the excessive usage of javascript (JS). Based on an analysis of popular webpages, we observed that a considerable number of JS elements utilized by these pages are not essential for their visual and functional features. In this paper, we propose JSCleaner, a javascript de-cluttering engine that aims at simplifying webpages without compromising their content or functionality. JSCleaner relies on a rule-based classification algorithm that classifies JS into three main categories: non-critical, replaceable, and critical. JSCleaner removes non-critical JS from a webpage, translates replaceable JS elements with their HTML outcomes, and preserves critical JS. Our quantitative evaluation of 500 popular webpages shows that JSCleaner achieves around 30% reduction in page load times coupled with a 50% reduction in the number of requests and the page size. In addition, our qualitative user study of 103 evaluators shows that JSCleaner preserves 95% of the page content similarity, while maintaining nearly 88% of the page functionality (the remaining 12% did not have a major impact on the user browsing experience).

关键词： javascript User Experience Classification Web Simplification

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高职院校javascript课程教学改革探索

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电脑知识与技术 2023年第31期19卷 148-150页

作者：高晓宇吴春祥任利敬广东机电职业技术学院人工智能学院广东广州510000

为了培养学生的专业技能、创新能力和实践能力,对高职院校的javascript课程进行教学改革是十分必要的。通过分析目前javascript课程教学存在的问题,提出优化教学内容、改变教学方式和采用多元化的评估方式等教学改革措施,并对JavaScrip... 详细信息

为了培养学生的专业技能、创新能力和实践能力,对高职院校的javascript课程进行教学改革是十分必要的。通过分析目前javascript课程教学存在的问题,提出优化教学内容、改变教学方式和采用多元化的评估方式等教学改革措施,并对javascript课程教学改革进行了深入研究和探索。实践的结果表明,采用新的教学改革措施有利于学生专业技能、创新能力和实践能力的提升。

关键词： javascript 教学改革改革措施研究探索

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Statically typed programming languages in the javascript ecosystem: A type system perspective

Statically typed programming languages in the JavaScript eco...

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作者： Mikkonen, Juuso Aalto University

学位级别：硕士

javascript is a ubiquitous programming language with usage in web, mobile applications and server software. The status of the language as the de-facto programming language of the web has made the language ecosystem advanced with a great number of userspace libraries and major companies working on efficient runtime systems. The core language, however, has numerous known difficulties caused by the initial design and persisted by the requirements for backwards-compatibility. In the last decade, a number of programming languages have chosen javascript as the compile target of the language. Type theory and its application, programming language type systems, is an essential area of study in the design of programming languages. Every high-level programming language features a type system that greatly influences the ways of designing and implementing programs in the language. This thesis examines a group of selected statically-typed programming languages that compile to javascript. The core topics of research in this thesis are the motivation for new JS-compiled languages, the type system design of the languages, and the future direction of the javascript ecosystem based on the current trends and parallels to other programming ecosystems. The results of the work include identifying several trends in type systems for the JS ecosystem and the web. These include unsound yet convenient partially inferred type systems for object-oriented and multi-paradigm programming and fully inferred extended Hindley-Milner type systems for primarily functional programming languages. Additionally, different options for the advancement of the programming ecosystem, including type annotations, inference of dynamically typed languages and new compile targets, are explored. Finally, based on the design choices of the languages researched, we provide several recommendations for safe and productive statically typed programming in the javascript ecosystem.

关键词： programming language type theory type system static typing javascript

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Design and Implementation of Full-stack Testing for Web SPA in javascript

Design and Implementation of Full-stack Testing for Web SPA ...

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作者： Jin, Zhongyuan Aalto University

学位级别：硕士

The landscape of web development has been constantly changing. With the appearance and adoption of new libraries, web applications are becoming more and more sophisticated. Continuous integration and continuous deployment (CI/CD) are also being implemented in more and more projects. These changes have driven the increasing need for automated testing to improve robustness and shorten delivery time. This study investigates how a testing solution can be designed and implemented for a typical web application where javascript serves as the prioritized programming language in the technology stack. Firstly, an investigation is made on which tools can be used to fulfill which functionality in web application testing. In each of the functionality category, some of the most popular tools are compared against each other. Then a discussion is made on how to implement a testing solution that covers unit/integration/E2E testing in both the frontend and the backend with tools that fit the given technical requirements best. The focus of work in on improving E2E testing, as E2E testing is generally more time consuming than unit testing or integration testing. This goal is achieved by attempting changes to the architecture in implementation and exploiting some modern javascript features. Besides making improvements on a baseline solution, a new approach to drive browser automation is also experimented. The new approach aims to control the browser within the browser itself using client-side javascript instead of outside the browser (such as using WebDriver protocol etc.). An experimental implementation of this idea. And the advantages and limitations of this approach are discussed. The implemented solution is evaluated based on functionality requirements given by the target application, execution time as well as error rate.

关键词： javascript SPA testing E2E testing integration testing node.js

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