)
}
}
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(
}
{
)
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(
)
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(
{
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(
)
}
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{
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}

Array.at Negative Indices

  1. const arr = [
  2.   'one', 'two', 
  3.   'three', 'four'
  4. ];
  5. console.log(
  6.   arr.at(-1), 
  7.   arr.at(-2), 
  8.   arr.at(0)
  9. );

Array.at allows negative index values to be used to read elements from an array. I’ve seen this done using a Proxy in the past.

snippet.zone ~ 2021-22 /// {s/z}