It says in the Two-Weapon Fighting attack option (PHB, 165):
When you take the Attack action and attack with a light melee weapon that you're holding in one hand, you can use a bonus action to attack with a different light melee weapon that you're holding in the other hand.
And then there is the Dual Wielder feat in the PHB:
You can draw or stow two one-handed weapons when you would normally be able to draw or stow only one.
It somehow gave me an impression that I now may be able to do two attacks in one action, and then the next two as the bonus action, since it says that my weapon productivity literally doubles? Or else, what use can be made out of this addition to the feature?
I also chose the Two-Weapon Fighting fighting style as a Fighter class option, and at that point I am interested only in whether any of these provide me with the right to stab people four times per turn or not.
How many attacks exactly do I get if I combine the Dual Wielder feat with the Two-Weapon Fighting fighting style?