How to extract attributes from a vector layer within areas bound by polygons that are defined in another vector layer, in QGIS 3.1?

Question

I have a few polygons defined in a vector layer (Layer A). I have another vector layer (Layer B) that contains two attributes (slope and elevation).
How can I extract the slope and elevation values in B that are bound by areas in A?

spatialthoughts · Accepted Answer

This can be done with a standard spatial join. Depending on how you want to extract the values from Layer B, use the "Join attribute by location"  or   "Join attribute by location (summary)" algorithm from the Processing Toolbox.
https://www.qgistutorials.com/en/docs/3/performing_spatial_joins.html

How to extract attributes from a vector layer within areas bound by polygons that are defined in another vector layer, in QGIS 3.1?

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