How to Convert a Map to a JSON String in Ruby

How to Convert a Map to a JSON String in Ruby ?

Answer

To convert a map to a JSON string in Ruby, you can use the `to_json` method provided by the `JSON` module. This method converts a Ruby object, such as a hash, to a JSON string.

✐ Examples

1 Converting a Map to a JSON String

We can convert a map to a JSON string in Ruby using the `to_json` method provided by the `JSON` module.

For example,

We start by requiring the json library.
We declare and initialize a hash named myMap with key-value pairs.
We convert the hash to a JSON string using the to_json method.
We print the resulting JSON string to the console.

Ruby Program

require 'json'

# Declare and initialize a hash
myMap = {
    1 => 10,
    2 => 20,
    3 => 30,
    4 => 40,
    5 => 50
}

# Convert the hash to a JSON string
jsonString = myMap.to_json

# Print the resulting JSON string
puts 'JSON string from map:', jsonString

Output

JSON string from map: {"1":10,"2":20,"3":30,"4":40,"5":50}

Summary

In this tutorial, we learned How to Convert a Map to a JSON String in Ruby language with well detailed examples.

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