Its impossible to respond in a thread after some levels of nesting so I will just go and post in top level adding to one part of it:
So many JS articles have people in the comments section bickering about performance and citing arbitrary benchmark metrics as proof.
I also think people think about "performance" too narrowly. Developers performance matters. Especially since JIT compilers progress every year and find new ways of applying those microoptimizations. In the IE days it was very often the case that one microoptimization would be an antipattern next version, because engine strategy was so much better.
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Its impossible to respond in a thread after some levels of nesting so I will just go and post in top level adding to one part of it:
I also think people think about "performance" too narrowly. Developers performance matters. Especially since JIT compilers progress every year and find new ways of applying those microoptimizations. In the IE days it was very often the case that one microoptimization would be an antipattern next version, because engine strategy was so much better.