#       
## Overview
A particular value can be checked to see if it exists in a certain hash by using the **`has_value?()`** method. This method returns `true` if such a value exists, otherwise `false`.
## Syntax
```ruby
hash.has_value?(value)
```
## Parameters
**`hash`**: The hash we want to use for checking.

**`value`**: The value we want to confirm if present in the `hash`.
## Return value
This method returns a Boolean. `true` is returned if such value exists. Otherwise, `false` is returned.


# create hashes
h1 = {one: 1, two: 2, three: 3}
h2 = {name: "okwudili", stack: "ruby"}
h3 = {"foo": 0, "bar": 1}
h4 = {M:"Mango", A: "Apple", B: "Banana"}

# check for some values
puts h1.has_value?(2)
puts h2.has_value?("ruby")
puts h3.has_value?("foo")
puts h4.has_value?("Apple")

## Explanation
* Lines 2-5: We create several hashes.

* Lines 8-11: We check if some values existed in the hashes we created and print the results to the console.

How to check if a particular value exists in a Hash in Ruby

Use `has_value?()` to check if a value exists in a Ruby hash, returning true or false.