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A comment on Hiring Is Broken. Parent comment

Re:Hiring Is Broken by wtetzner on Thursday January 17, 2019 @01:24PM (#18933114)
That doesn't mean you shouldn't have a reasonable understanding of what those abstractions are doing, though.
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Re:Hiring Is Broken by bgdam on Thursday January 17, 2019 @04:00PM (#18934590)
For the purpose of selecting a DOM node in a performant manner, you really don't need to know how CSS/XPath traverse the DOM. You just need to know that querySelector exists.

In general, I think it's enough to know what your abstraction does, rather than how it does it.

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