JavaScript: The Used Parts

2014 IEEE 38th Annual Computer Software and Applications Conference Pub Date : 2014-07-21 DOI:10.1109/COMPSAC.2014.69

S. Gude, M. Hafiz, Allen Wirfs-Brock

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Abstract

We performed an empirical study to understand how different language features are used by JavaScript developers in practice, with the goal of using this information to assist future extensions of JavaScript. We inspected more than one million unique scripts (over 80 million lines of code) from various sources: JavaScript programs in the wild collected by a spider, (supposedly) better JavaScript programs collected from the top 100 URLs from the Alex a list, JavaScript programs with new language features used in Firefox Add-ons, widely used JavaScript libraries, and Node.js applications. Our corpus is larger and more diversified than those in prior studies. We also performed a study on 45 JavaScript developers to understand the reasons behind some of their language feature choices. Our study shows that there is a wide-spread confusion about newly introduced JavaScript features, a continuing misuse of existing problematic features, and a surprising lack of adoption of object-oriented features. Understanding JavaScript programming practices will assist many stakeholders: tool developers can analyze the requirements of better tools and more responsive IDEs and programmers can learn about the used (and the good) parts of JavaScript.

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JavaScript:使用过的部分

我们进行了一项实证研究，以了解JavaScript开发人员在实践中如何使用不同的语言特性，目的是使用这些信息来帮助JavaScript的未来扩展。我们检查了来自不同来源的超过100万个独特的脚本(超过8000万行代码):由蜘蛛收集的野外JavaScript程序，(据说)从alexa列表的前100个url中收集的更好的JavaScript程序，Firefox插件中使用的具有新语言特性的JavaScript程序，广泛使用的JavaScript库和Node.js应用程序。我们的语料库比以前的研究更大，更多样化。我们还对45名JavaScript开发人员进行了一项研究，以了解他们选择某些语言特性背后的原因。我们的研究表明，对新引入的JavaScript特性存在广泛的混淆，对现有有问题的特性的持续滥用，以及对面向对象特性的采用令人惊讶地缺乏。了解JavaScript编程实践将帮助许多利益相关者:工具开发人员可以分析更好的工具和响应更快的ide的需求，程序员可以了解JavaScript的常用(和好的)部分。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2014 IEEE 38th Annual Computer Software and Applications Conference

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