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This new feature allows negative indices to wrap around from the back, just like ES2021 `Array.at`. In particular, the following methods accept negative indices, and behave like corresponding Array methods: * `FormArray.at(index)`: behaves the same as `Array.at(index)` * `FormArray.insert(index, control)`: behaves the same as `Array.splice(index, 0, control)` * `FormArray.setControl(index, control)`: behaves the same as `Array.splice(index, 1, control)` * `FormArray.removeAt(index, control)`: behaves the same as `Array.splice(index, 1)` Previous work in #44746 and #44631 (by @amitbeck). Issue #44642. Co-authored-by: Amit Beckenstein <amitbeck@gmail.com> PR Close #44848 |
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