Namespace Traverse

Iterates over the children of root, breadth-first

Returns the number of children of tree. Under the hood is just [ ...tree.children() ].length

Returns true if prospectiveChild can be legally added to parent. False is returned if:

• parent and prospectiveChild are equal
• parent already contains prospectiveChild
• prospectiveChild has parent as its own child

Iterates over children of root, depth-first.

Applies predicate to root and all its child nodes, returning the node where predicate yields true. Use findByValue to find a node by its value

Descends parent, breadth-first, looking for a particular value. Returns undefined if not found.

Returns any parent of child that has value possibleParentValue. Returns undefined if not found.

Applies predicate to root and all its child nodes, returning the node value for predicate yields true. Use find to filter by nodes rather than values

Searches breadth-first for possibleValue under and including parent. maxDepth sets he maximum level to which the tree is searched.

Returns any parent of child that has value possibleParentValue. Returns undefined if not found.

Search through children in a path-like manner.

Returns true if possibleChild is contained within parent tree. That is, it is any sub-child.

Returns true if parent has any child with value possibleChildValue. It explores at children at any depth from parent.

Returns true if child is parented at any level (grand-parented etc) by possibleParent

Returns true if child is parented at any level (grand-parented etc) by a parent with value possibleParentValue

Returns true if possibleChild is contained within maxDepth children of parent node. By default only looks at immediate children (maxDepth = 0).

Returns true if parent has any child with value possibleChildValue. It explores at children up to maxDepth from parent. By default only looks at immediate children (maxDepth = 0).

Returns true if child exists within possibleParent. By default it only looks at the immediate parent (maxDepth: 0). Use Number.MAX_SAFE_INTEGER for searching recursively upwards (or hasAnyParent)

Checks if a child node has a parent with a certain value Note: by default only checks immediate parent. Set maxDepth to a large value to recurse

Iterates over parents of node, starting with immediate parent

Iterates over siblings of node.