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JavaScript – Detecting Infinite Loops

When allowing a user to input code that could potentially cause an infinite loop, it is nice to test the code first, right? Even, if the code doesn’t run infinitely, it would be nice to know if it takes longer than you would want. One way to nicely test for infinite loops or long running code is by using web workers. The following is a function which uses eval() in a web worker to execute the code and adds a timeout so that if the code takes too long to run, the web worker will be terminated:

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