callumacrae/tryregex — pull request #12 by ethrea1 (2014-09-23 10:27:15+00:00)
Title: Fixed the negative assertion issue in lesson 28

When i use `partialSums.match(/\d\+\d(?==)(?!\d)/g)` to extract "3+3" only, it will extract "3+3" and "6+6" in lesson 28, i think the negative assertion should be `(?!=\d)`.