- flatMap<T>(tree: T, fn: ((node: Node<Data>, i: number, parent?: Parent) => Node<Data>[])): T
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Parameters
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tree: T
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fn: ((node: Node<Data>, i: number, parent?: Parent) => Node<Data>[])
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- (node: Node<Data>, i: number, parent?: Parent): Node<Data>[]
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Parameters
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node: Node<Data>
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i: number
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Optional parent: Parent
Returns Node<Data>[]
Returns T
映射一棵 ast 树 注：其中会执行真实的修改操作
Returns