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

id, title, challengeType, videoId, dashedName

id	title	challengeType	videoId	dashedName
698dca057932b3cc4b19c926	Linear Search in Code	11	bKkgjdPkL3A	linear-search-in-code

--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--

def linear_search(list, target):
    for i in range(len(list) - 1):  
        if list[i] == target:
            return i
    return -1

---

def linear_search(list, target):
    for i in range(len(list)):
        if i == target:   
            return i
    return -1

---

def linear_search(list, target):
    for i in range(len(list)):
        if list[i] == target:
            return i
        else:
            return -1  

---

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

--video-solution--

4