Writing a function with multiple arguments
In the last exercise, you wrote a function that returns the first letter of a student's grades. However, you would like a function that can be used to extract any of the student's grades.
For each student, you have text data that looks like this:
grades = "XXXX"
Where the letters "XXXX" are the grades for the student in mathematics, history, science, and drama, respectively.
A single string of grades named mygrades and an array of grade strings named grades_array is available in your environment.
This exercise is part of the course
Introduction to Julia
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Create the get_gradenumber function
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