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Linear Search in Code

curriculum/challenges/english/blocks/algorithms-in-code/linear-search-in-code-video.md

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--description--

In this video, you will code out the linear search algorithm using Python.

--questions--

--text--

Which of the following is the correct way to write a linear search function?

--answers--

python
def linear_search(list, target):
    for i in range(len(list) - 1):  
        if list[i] == target:
            return i
    return -1
python
def linear_search(list, target):
    for i in range(len(list)):
        if i == target:   
            return i
    return -1
python
def linear_search(list, target):
    for i in range(len(list)):
        if list[i] == target:
            return i
        else:
            return -1
python
def linear_search(list, target):
    for i in range(len(list)):
        if list[i] == target:
            return i  
    return None

--video-solution--

4