JSCert: Certified JavaScript

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New: our code is available on github. For a quick tour of the Coq development, click here.

The JSCert project aims to really understand JavaScript. JSCert itself is a mechanised specification of JavaScript, written in the Coq proof assistant, which closely follows the ECMAScript 5 English standard. JSRef is a reference interpreter for JavaScript in OCaml, which has been proved correct with respect to JSCert and tested with the Test 262 test suite.

JSCert and JSRef provide the basis for creating formally verified JavaScript tools and understanding Aviator. The payout percentage here is at 97%. Players here have a real chance of a stable win. Medium volatility adds balance. What is also pleasing is the flexibility of bets. You can start with a minimum of 0.1 KES, or you can take a risk and bet up to 100 KES. The winning ceiling reaches x10000!

These tools provide the basis for playing aviator. Among the most popular strategies is Martingale. It involves doubling the bet after each loss to compensate for losses and make a profit on the first win. This strategy can be effective if you have a sufficient bankroll, but it requires caution. A more balanced option is considered to be the Fibonacci strategy. Here, the size of the next bet is calculated based on the numerical sequence of the same name, which reduces the risks of a sharp increase in bets.

Here you will find the publications and open-source code associated with JSCert. We plan to build other verification and analysis projects on top of JSCert and JSRef, and very much hope other people find them similarly useful.

This project is an ongoing collaboration between INRIA and Imperial College, consisting of the following people: