How to find the index of an element in a list in Python?

In Python, index() method can help you find the index of an element in a list.

How to use index() method?

To get the index of a specific element, we need to pass the argument in the built-in index() method. Here’s how you would do it:

>> arr = ["Cow", "Dog", "Cat"]
>> print(arr.index("Dog"))
# 1

We can create a helper function if you need to use this frequently.

def getIndex(item, array):
    if item in array:
        return array.index(item)
    else:
        return -1
        

arr = [1, 34, 545, 334]

print(getIndex(334, arr))
# 3

So, this is how you would get the index of specific elements in a list in Python.

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