refactor: use Array.prototype.at() to get last elements
#17949
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Prerequisites checklist
What is the purpose of this pull request? (put an "X" next to an item)
[ ] Documentation update
[ ] Bug fix (template)
[ ] New rule (template)
[ ] Changes an existing rule (template)
[ ] Add autofix to a rule
[ ] Add a CLI option
[ ] Add something to the core
[x] Other, please explain:
Per node.green,
String/Array.prototype.at()is available in all versions of Node.js that ESLint v9 supports.This enables the
unicorn/prefer-atrule with the default behavior to enforce the use of.at()with negative indexes, and updates code to use, for example,tokens.at(-1)instead oftokens[tokens.length - 1].What changes did you make? (Give an overview)
Enabled the rule and ran autofix.
Is there anything you'd like reviewers to focus on?