Ruby Convert Array to JSON

1. Introduction

In the world of Ruby programming, you may often find yourself needing to convert arrays to JSON format. This can be particularly useful when you're working with APIs or web applications where JSON is the standard data interchange format. Ruby makes this conversion simple with its built-in JSON library.

JSON, which stands for JavaScript Object Notation, is a lightweight data-interchange format that is easy for humans to read and write and easy for machines to parse and generate. Converting an array to JSON in Ruby involves serializing the array, which is transforming the array data into a JSON-formatted string.

2. Program Steps

1. Make sure the JSON library is available in your Ruby environment.

2. Define the array that you would like to convert to JSON.

3. Use the JSON library to serialize the array.

4. Output the serialized JSON string.

3. Code Program

# Step 1: Require the JSON library
require 'json'
# Step 2: Define the array
array_to_convert = ["apple", "banana", "cherry"]
# Step 3: Serialize the array to a JSON-formatted string
json_array = array_to_convert.to_json
# Step 4: Output the JSON string
puts json_array

Output:

["apple","banana","cherry"]

Explanation:

1. require 'json' ensures that the JSON methods are available to use.

2. array_to_convert is the array containing strings of fruit names that we want to serialize.

3. array_to_convert.to_json is the method provided by the JSON library in Ruby to convert an array to a JSON string.

4. puts json_array will output the resulting JSON string to the console. It prints the array as a JSON-formatted string, which in this case is an array of strings in JSON format.


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