Form.List name paths

React chapter 41 · Ant Design · Form.Item / Form.List · source: ant-design/components/form

The problem

A dynamic list of phones is useState<string[]>. Add/remove shifts indexes, inputs remount, focus jumps. Nested objects (users[0].phone) are spread soup. Validation has to walk the array by hand.

The pattern that fixes it

Form stores values by path: name={["phones", 0]}. Form.List add/remove allocates keys so React identity is stable. Ant Design Form is rc-field-form: a store keyed by name paths.

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