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A comment on 38% of bugs at Airbnb could have been prevented by using types. Parent comment

Re:38% of bugs at Airbnb could have been prevented by using ... by mrfusion on Sunday February 10, 2019 @09:31PM (#19131625)
Can you explain that idea a bit more? Sounds interesting.
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Re:38% of bugs at Airbnb could have been prevented by using ... by int_19h on Monday February 11, 2019 @12:06AM (#19132212)
In JavaScript, "1"+2 is 12.

In Python, it's a TypeError.

Same goes for most other types. JS is generally happy to convert everything to everything, often via strings. So even utter nonsense, like multiplying a function by an array, still works (the result is NaN). Conversely, in Python, such implicit conversions are rarely in the play - the one you see most is int/float.

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