/* TASK 3 (7.5pts): In a similar fashion to map, your next task is to define the filter function using fold_left. filter takes in 2 arguments: 1. g - This is a function that decides whether an element in the list is permitted or not. If the function returns true, then the element is permitted, otherwise it's not -- it's filtered out. 2. ls - This is the list that passes through filter function g. Some examples of filter are: filter(x => x <= 2, List([1,2,3,4])) ------> List([1,2]) filter(x => x % 2 == 0, List([1,2,3,4])) ------> List([2,4]) Again, your constraint is to use fold_left only (no loops!). */ const filter = (g, ls) => /** **/ undefined; /** **/

pls help. Use fold_left only