idLookup property
A table used to look up nodes by their string ID. Note that this table is not rebuilt automatically if the SvgDOM is modified programmatically. See resetIDLookup.
Implementation
Map<String, SvgNode> get idLookup {
var r = _idLookup;
if (r == null) {
_idLookup = r = {};
root._addIDs(r);
}
return r;
}