I have just now fried 2 a4988 drivers because I didn't know that they didn't have reverse polarity protection, both times I accidentally connected the power in reverse the first time then switched it and they didn't work after. at first, I blamed the manufacturer but now realize I was wrong. So, does the drv8825 have reverse polarity protection if I make this m, mistake again it won't fry the board
No! I don't think any chips would have that, they assume competent board design and test.
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My advice is to look up existing reverse polarity protection circuit designs you can build before you try again. You can use a diode, but only if you like wasting power and the thing which you are powering (the a4988 in your case) can cope with losing about 0.7V of supply voltage to the diode. There is also a reverse polarity protection circuit design involving a mosfet which drops almost no voltage.
Once projects are complete I'd always sugegst designing them to be powered by plugging in a non-reversible multi-conductor'd cable. A micro USB cable, a molex picoblade... where you've selected which line of the cable carries which supply voltage and matched this to the cable accepting header fitted to your project.
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