23 lines
540 B
TypeScript
23 lines
540 B
TypeScript
type Tree = {
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children?: Tree[];
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[key: string]: any;
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};
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export const traverseTree = (tree: Tree, callback: Function) => {
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callback(tree);
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if (tree.children) {
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tree.children.forEach(b => traverseTree(b, callback));
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}
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};
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export const mapTree = (tree: Tree, callback: Function) => {
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const mapped = callback(tree);
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if (tree.children && tree.children.length) {
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const children: Tree[] = tree.children.map(branch =>
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mapTree(branch, callback),
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);
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return { ...mapped, children };
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}
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return { ...mapped };
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};
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