WebbRuby has a built-in method called to_i that converts any object to an integer. If the object is already an integer, it will return that object. Otherwise, it will convert the object to an integer using the default radix. This method can be applied to floats, strings, and integers. Syntax: Number.to_i Example: WebbYou can pass an array of even elements to get a new hash: Hash [ [ ["a", 1], ["b", 2], ["c", 3]]] # {"a"=>1, "b"=>2, "c"=>3} Useful if you are building your hash by merging the elements of …
A lesser known capability of Ruby
Webb10 jan. 2024 · A Ruby symbol cannot be changed at runtime. Ruby symbols are often used as hash keys, because we do not need full capabilities of a string objects for a key. symbols.rb #!/usr/bin/ruby p :name p :name.class p :name.methods.size p "Jane".methods.size p :name.object_id p :name.object_id p "name".object_id p … WebbStoring Values in a Ruby Hash You can create a hash with a set of initial values, as we have already seen. Here’s another example: fruits = { coconut: 1, apple: 2, banana: 3 } Another … the mayhew
Convert json string to hash - Rails - Ruby-Forum
WebbIt'll convert your object into hash. But, that hash will come as a value to the name of that object as a key. In your case, {'gift' => {'name' => 'book', 'price' => 15.95 }} If you need a hash that's stored in the object use as_json (root: false). I think by default root will be false. For more info refer official ruby guide Webb28 maj 2024 · In Ruby (without Rails), is there a simple way to convert an object into a hash? I have done some searching and similar Rails solutions had the OP try using … WebbIt'll convert your object into hash. But, that hash will come as a value to the name of that object as a key. In your case, {'gift' => {'name' => 'book', 'price' => 15.95 }} If you need a … the mayhem war