#    
## Overview
We can use the **`clear` method** to clear all the entries of a hash.
## Syntax
```ruby
hash.clear
```
## Parameters
**`hash`**: This is the hash object we want to clear.
## Return value
This method returns `hash`, but with its entries cleared.

## Example


# create some hashes
h1 = {one: 1, two: 2, three: 3}
h2 = {name: "okwudili", stack: "ruby"}
h3 = {"foo": 0, "bar": 1}

# print all hashes
puts h1
puts h2
puts h3

# clear all hashes
h1.clear
h2.clear
h3.clear

# Reprint hashes
puts h1
puts h2
puts h3

## Explanation
In the above code snippet:
* **Lines 2 to 4**: We create hashes `h1`, `h2`, and `h3` with some entries.
* **Lines 7 to 9**: We print the hashes to the console.
* **Lines 12 to 14**: We clear the entries of the hashes by using the `clear` method.
* **Lines 17 to 19**: We reprint the hashes to the console. 

When we run the code, we see that the hash entries are cleared using the `clear` method.

What is hash.clear in Ruby?

Removes all entries from a hash in Ruby. Returns an empty hash.