I was involved in a recent discussion on the "best" way to remove a given parameter from a URL string. The conversation began with using string primitives to split and join the parameter, a method ...

Real-world datasets rarely match perfectly; even simple fields like company names may contain typos, punctuation differences, inconsistent casing, or formatting issues. This exercise will help you ...

Below, I will roughly follow how I arranged the lecture on regular expressions, while also providing the relevant functions in the code. A regular expression is equivalent to some finite automaton.