Pythons reverse vs reversed 2minutespy
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sure! let's explore the differences between python's `reverse()` method and the `reversed()` function.
overview
- **`list.reverse()`**: this is a method that modifies a list in place, meaning it changes the original list and does not return a new list.
- **`reversed()`**: this is a built-in function that returns an iterator that accesses the given sequence in the reverse order without modifying the original sequence.
key differences
1. **return type**:
- `list.reverse()` returns `none` since it modifies the list in place.
- `reversed()` returns an iterator, which can be converted to a list or used in loops.
2. **modifying original**:
- `list.reverse()` modifies the original list.
- `reversed()` does not modify the original sequence.
3. **supported types**:
- `list.reverse()` is specific to lists.
- `reversed()` can work with any iterable, such as strings, tuples, and lists.
code examples
here are examples to illustrate the differences:
using `list.reverse()`
**output:**
using `reversed()`
**output:**
summary
- use `list.reverse()` when you want to reverse a list in place and do not need to keep the original order.
- use `reversed()` when you want a new reversed sequence while keeping the original sequence intact.
that's a quick overview of `reverse()` vs `reversed()` in python!
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