tree-walker

Source: quickjs-tree-walker.c — module exports TreeWalker and TreeIterator

DOM-style traversal over an arbitrary nested JS value (objects/arrays treated as a tree of nodes).

TreeWalker

new TreeWalker(root[, filter, flags])   // length 1

Method	Args	Description
`firstChild()`	0	Descend to the first child of the current node.
`lastChild()`	0	Descend to the last child.
`nextNode()`	0	Advance to the next node in document order.
`nextSibling()`	0	Move to the next sibling.
`parentNode()`	0	Move up to the parent.
`previousNode()`	0	Move to the previous node in document order.
`previousSibling()`	0	Move to the previous sibling.
`toString()`	0	String representation of the walker.

Property	Kind	Description
`root`	getter	The traversal root.
`currentNode`	getter	The node currently pointed at.
`currentKey`	getter	Key/index of the current node within its parent.
`currentPath`	getter	Path from the root to the current node.
`depth`	getter	Current nesting depth.
`index`	getter/setter	Index of the current node among its siblings.
`length`	getter	Number of children of the current node.
`tagMask`	getter/setter	Bitmask of node types to visit.
`filter`	getter	The node filter (enumerable).
`flags`	getter/setter	Traversal flags.

new TreeIterator(root[, ...])   // length 1

Iterable form of the walker: exposes next(), [Symbol.iterator]() and tags itself "TreeIterator".