Openlayers 2 projection different depending on how I ask for it

Question

I have a map and am trying to see what projection is set, but, depending on how I ask, I get two different values, this is what I see in the console:

> this.olMap.projection
< "EPSG:4326"

> this.olMap.getProjection()
< "EPSG:900913"

Is this expected? Which one is true?

Answer 1

olMap.projection is the default projection for layers that are added to the map, with a default value of EPSG:4326

olMap.getProjection is the projection of the map (the display)