Customer reviews

4.3 out of 5 stars
4.3 out of 5
10 customer ratings
5 star
75%
4 star
9%
3 star 0% (0%) 0%
2 star 0% (0%) 0%
1 star
16%
Learning Regular Expressions
Format: Kindle EditionChange
Price:$15.99
How does Amazon calculate star ratings?