London | 26-ITP-Sept | Fung Nin Lee | Sprint 1 | Sprint-1 exercise - #1496

• How should the function handle an array containing NaN?

• How should the function handle an array containing elements that are not numbers or strings (e.g., null, undefined, true, console (object), etc.)?

The assessment seems do not require to handle NaN and array which are neither numbers nor strings.

• NaN is also a value of type "number". Handling NaN is optional in this exercise but you should find out how to check if a value is not NaN.

• The comment in max.test.js does mention "any value that isn't a number"

   // Given an array containing a value that isn't a number
   // When passed to the max function
   // Then it should throw Error("findMax requires an array of numbers")
  

  So the function should also be able to throw an error when the given array contains any value that is not a number.

What should calculateMean([Infinity, 0, -Infinity]) or calculateMean([0, NaN]) return?
The same also applies to sum().

The assessment seems do not require to handle the scenario you mentioned.

-Infinity and Infinity are also values of type "number". Change is optional, but you should find out how to check if a number is not one of them.

Could also just check whether item is NOT a value of type number, or even better, check if the item is NOT a finite number.

Even though the test script does not include any test cases involving all possible non-number values ,the comment in the test script does mention:

Arrays containing any non-number value should throw

The objective of this exercise is to practice using try-catch block to catch and handle the error thrown by a function. calculateMedian() should remain unchanged (per instruction on line 1).

Could you restore the original code of calculateMedian(), and then use a try-catch block in descrubeMedian() accordingly to achieve the objective?

In addition to checking whether result is a copy of original, this test should also check if result and original contains identical elements.