JavaScript Errors: An Exceptional History

Re:JavaScript Errors: An Exceptional History by blotter_paper on Tuesday November 05, 2019 @02:42PM (#21455892)

> the moral panic about JavaScript on the web is endless because some jerks are out there doing it wrong

To be fair, the language allows them to do it wrong by default with all that implicit type conversion and whatnot -- even in the original equality operator! You can write good JavaScript, but you have to purposefully avoid weird behavior that just isn't present in some other modern languages like Python and Ruby. JavaScript had a weird history, got expanded upon accidentally (i.e. through some browser vendor or another deciding to implement something) many times, and has always valued backwards compatability more than languages that feel comfortable expecting the user to install the relevant runtime.

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Re:JavaScript Errors: An Exceptional History by strbean on Tuesday November 05, 2019 @05:02PM (#21457221)

Python has

    > a = 100
    > a is 100
    True
    > a = 1000
    > a is 1000
    False

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Re:JavaScript Errors: An Exceptional History by blotter_paper on Tuesday November 05, 2019 @05:25PM (#21457435)

CPython stores integers above 256 as individual pieces of data, but a normal Python script doesn't. I think it's technically undefined behavior.

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