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Linear Search
General

A search algorithm that searches for a given value in a list of values.
It simply starts at index 0 in the list, and loops through the indices in the list until it finds the desired value.
Returns the index of the value in the list, -1 if the value doesn't exist.
Linear search is less efficient than binary search.
Linear search has a Big-Oh runtime of O(n), where n is the length of the list.
Pseudocode for Linear Search:
```
for every index in the array:
get element at current index
if elem == the value we are looking for
return the current index
return not found
```