Sometimes you need to search or filter something in JOSM and you don´t know where to start. For this reason I have created a compilation of search & filter expressions I have found and also created myself.
You can always find them in my OSM Wiki page .
I am not posting them here due to the fact that the table format will be lost. If you have any other great filter expression please contact me.
Search or Filter Expression Description nodes:3- -(building=*) -(highway=*) As the previous excluding highways building inview nodes:4- Buildings in view with more than 4 nodes child(type:relation id:<ID>) waterway=river Children of the relation (the members) with the id <ID> tagged waterway=river closed areasize:-200 Closed ways (areas) with areas up to 200m² in size closed waylength:1000- Closed ways with perimeters greater than 1000m in length type:way highway=* name~"^[0-9]+.*" Highways of any kind that the name starts with one number highway=* name: Highways that have a name