How to Parse Hash in Ruby? Last Updated : 05 Apr, 2024 Comments Improve Suggest changes Like Article Like Report Parsing a hash in Ruby entails gaining access to its keys and values, iterating over them, and carrying out any necessary actions. The article focuses on discussing the ways to parse a hash in Ruby. Table of Content Iterating through a HashAccessing Hash ElementsSorting a HashIterating through a HashA hash may be iterated over using a variety of techniques, such as each, each_key, each_value, or map. Below is the Ruby program to iterate through a hash: Ruby hash = { "a" => 1, "b" => 2, "c" => 3 } hash.each do |key, value| puts "Key: #{key}, Value: #{value}" end OutputKey: a, Value: 1 Key: b, Value: 2 Key: c, Value: 3 Accessing Hash ElementsSquare brackets or the fetch method may be used to retrieve certain components inside the hash. Below is the Ruby program to access the hash elements: Ruby hash = { "a" => 1, "b" => 2, "c" => 3 } puts hash["b"] # Output: 2 puts hash.fetch("c") # Output: 3 Output2 3 Sorting a HashThe sort_by method allows you to sort a hash according to keys or values. Below is the Ruby program to sort a hash: Ruby hash = { "b" => 2, "a" => 1, "c" => 3 } sorted_by_key = hash.sort_by { |key, value| key } sorted_by_value = hash.sort_by { |key, value| value } puts sorted_by_key.to_h # Output: {"a"=>1, "b"=>2, "c"=>3} puts sorted_by_value.to_h # Output: {"a"=>1, "b"=>2, "c"=>3} Output{"a"=>1, "b"=>2, "c"=>3} {"a"=>1, "b"=>2, "c"=>3} Comment More infoAdvertise with us Next Article How to Parse Hash in Ruby? R rahul709392 Follow Improve Article Tags : Ruby Similar Reads How to parse XML in Ruby? XML - Extensible Markup Language is used format on the platform for exchanging data and storing data on the web. Ruby, consists of a huge number of libraries and its syntax is flexible does provides several methods for parsing XML documents easily. In this article, we will look into various methods 2 min read How to parse JSON in Ruby? JSON stands for JavaScript Object Notation. In the JSON the data is stored in the form of a key-value pair. we can parse the JSON file in various languages with the help of the respective modules available in the languages. Let's suppose when we want to parse a JSON file in the Python programming la 4 min read How to parse HTML in Ruby? We have many languages which are used to parse the html files. We have Python programming languages. In Python, we can parse the html files using the panda's library and the library which is beautiful soup. The Beautiful Soup library is mainly used for web scraping. Similarly, we can parse the HTML 3 min read How to parse a YAML file in Ruby? YAML, which stands for “YAML Ain’t Markup Language,†is an easy-to-read human data serialization standard that is independent of the language used in programming. Many programmers use it to write configuration files. It becomes much more convenient for Ruby developers to parse YAML files because a l 2 min read How to iterate over a Hash in Ruby? In this article, we will discuss how to iterate over a hash in Ruby. By Iterating over a hash we can access key-value pairs and perform operations on them. Let us study different methods to iterate over a hash in ruby Table of Content Iterating over a hash using each methodIterating over a hash usin 2 min read Like