Why Are Impure Functions Bad? An impure function is kind of the opposite of a pure one – it doesn’t predictably produce the same result given the same inputs when called multiple times, and may cause side-effects. Do impure functions have side effects? A good sign that our function us impure (has side effect) is
Why Is There No Assignment Operation In Pure Functional Programming? A functional program is simply an expression, and executing the program means evaluating the expression. We can relate this to the imperative view by writing n = E0]. There is no state, i.e. there are no variables. Therefore there is no assignment, since there’s nothing
What Does It Mean For A Function To Be Referentially Transparent? In functional programming, referential transparency is generally defined as the fact that an expression, in a program, may be replaced by its value (or anything having the same value) without changing the result of the program. How is referential transparency related to functional side