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Re:Why Isn't Functional Programming the Norm? [video] by wdroz on Thursday October 17, 2019 @09:30AM (#21281810)
Maybe to avoid questionable behaviors, like in the article posted 3 months ago "Why ['1', '7', '11'].map(parseInt) returns [1, NaN, 3] in JavaScript" [0]

[0] - https://news.ycombinator.com/item?id=20242852

Re:Why Isn't Functional Programming the Norm? [video] by Roboprog on Friday October 18, 2019 @02:14AM (#21289076)
Things like Ramda and jquery help avoid fighting against IE and other browser nuances, as well.

Even when there seem to be native functions/ methods to do something. That’s where the monster lives.