ref: enable the @typescript-eslint/no-array-delete lint rule #88790
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JonasBa
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Apr 4, 2025
# Conflicts: # eslint.config.mjs
andrewshie-sentry
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When using the delete operator with an array value, the array's length property is not affected, but the element at the specified index is removed and leaves an empty slot in the array. This is likely to lead to unexpected behavior. As mentioned in the [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/delete#deleting_array_elements), the recommended way to remove an element from an array is by using the [Array#splice](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/splice) or the immutable [Array#toSpliced](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/toSpliced) method. see: https://typescript-eslint.io/rules/no-array-delete/
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When using the delete operator with an array value, the array's length property is not affected, but the element at the specified index is removed and leaves an empty slot in the array. This is likely to lead to unexpected behavior. As mentioned in the MDN documentation, the recommended way to remove an element from an array is by using the Array#splice or the immutable Array#toSpliced method.
see: https://typescript-eslint.io/rules/no-array-delete/