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Published in:
2013 | OriginalPaper | Chapter
Javanni: A Verifier for JavaScript
Authors : Martin Nordio, Cristiano Calcagno, Carlo Alberto Furia
Published in: Fundamental Approaches to Software Engineering
Publisher: Springer Berlin Heidelberg
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JavaScript ranks among the most popular programming languages for the web, yet its highly dynamic type system and occasionally unintuitive semantics make programming particularly error-prone. This paper presents Javanni, a verifier for JavaScript programs that can statically detect many common programming errors. Javanni checks the absence of standard type-related errors (such as accessing undefined fields) without requiring user-written annotations, and it can also verify full functional-correctness specifications. Several experiments with JavaScript applications reported in the paper demonstrate that Javanni is flexibly usable on programs with non-trivial specifications. Javanni is available online within the CloudStudio web integrated environment.