logo CodeStepByStep logo


Language/Type: Python lists list programming

Write a function named index_of that returns the index of a particular value in a list of integers. The function should return the index of the first occurrence of the target value in the list. If the value is not in the list, it should return -1. For example, if a list called list stores the following values:

list = [42, 7, -9, 14, 8, 39, 42, 8, 19, 0]

Then the call index_of(list, 8) should return 4 because the index of the first occurrence of value 8 in the list is at index 4. The call index_of(list, 2) should return -1 because value 2 is not in the list.

Function: Write a Python function as described, not a complete program.

You must log in before you can solve this problem.

Log In

Need help?

Stuck on an exercise? Contact your TA or instructor.

If something seems wrong with our site, please

Is there a problem? Contact us.