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Is JavaScript bad for complex computational tasks?

How bad is it, use JavaScript (CoffeeScript) to implement a heavy computing task.? I am concerned about the optimization problem , where the optimal solution cannot be calculated so quickly.

JavaScript was primarily chosen because visualization is required , and instead of adding the overhead to communicate between the various processes, the solution was to simply implement everything in JavaScript.

I do not see a problem with this, especially when viewing performance tests . But I often get the question: Why is JavaScript on earth?

I would argue as follows: this is an optimization problem, NP-hard . It doesn’t matter how much faster the other language will be , since it only adds a constant coefficient to the runtime - is that true?

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If JavaScript works for you and meets your needs, do you care what other people think?

One way to answer the question is to compare it with an implementation in a “good” language (your terms, not mine) and see what the difference is.

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