Returns whether two nodes are structurally equivalent.
If two elements are structurally equivalent, they must also semantically equivalent. However, two semantically
equivalent elements might not be structurally equivalent (e.g. /[ab]/ !=struct/[ba]/).
Returns whether two nodes are structurally equivalent.
If two elements are structurally equivalent, they must also semantically equivalent. However, two semantically equivalent elements might not be structurally equivalent (e.g.
/[ab]/!=struct/[ba]/).