index.html

See

• https://www.infoq.com/presentations/javascript-concurrency-parallelism/
• https://crguezl.github.io/_book/uai2015/

File race-example.js

https://medium.com/@ubershmekel/yes-there-are-race-conditions-in-javascript-ba044571a914

An example race condition in JavaScript When you run this script using Node or in a browser, it does not print "Ended with 0", but a random number. Even though the functions running simply loop 100 iterations of adding and subtracting. The reason the end result is random is because the sleeps are of random duration and the time between the read of the variable causes the eventual write to be incorrect when adder and subber interleave. This problem is similar to: https://en.wikipedia.org/wiki/Time-of-check_to_time-of-use