python for loop with index
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In Python, the for loop is a powerful construct for iterating over a sequence of elements. Often, there is a need to access both the elements and their corresponding indices during iteration. In this tutorial, we'll explore how to use the enumerate() function to achieve this in a clean and efficient manner.
The enumerate() function is a built-in Python function that allows iteration over a sequence while keeping track of the index of each element. It returns pairs of index and value, making it an excellent choice for for loops when you need both the element and its index.
Here's the basic syntax of the enumerate() function:
Let's break down the components:
Output:
In this example, the enumerate() function helps us access both the index and value of each element in the fruits list.
Using the enumerate() function in a for loop with the examples provided above, you can efficiently iterate over sequences while accessing both the elements and their indices. This is a handy technique for a variety of programming scenarios.
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