ruby hash to JSON converter

[p-racoon]

JSON and Ruby Hashes are pretty similar, but still, have their differences. One of them being that Ruby hashes allow Objects as keys, whereas JSON does not. Example:-

Ruby:
{
    {'a'=>1} => 2
}

This is a valid Ruby hash, but JSON does not allow that. hence, in this case, we can either call this as invalid input for JSON conversion, or we can do what to_JSON() function does in ruby. So basically it would simply Stringify the object there is, and return

{
    "{\"a\"=>1}" : 2
}

(As shown in gif)

Read more about to_json() [here] (https://apidock.com/rails/Hash/to_json) Try it yourself here Remember to use require 'json'

[p-racoon]

The JSON syntax or Definition in some sense can be found here

[p-racoon]

One more such issue is use and support of symbols in Ruby. In Ruby, Symbols can be used as keys

{
    :a => 65   # a here is the symbol
}

This too is a valid Ruby hash, but JSON does not allow that. Hence, in this case as well, we can either call this as invalid input for JSON conversion, or we can do what to_JSON() function does in ruby.

{
    "a" : 65
}

Ref: https://docs.ruby-lang.org/en/2.3.0/Hash.html Try it [here] (https://www.tutorialspoint.com/execute_ruby_online.php)

Edit: (Just some extra Clarification.) Javascript supports the use of Symbols in but they are difficult to be used with Object Literals. Because Ideally for Javascript that should have converted into

{
    [Symbol("a")] : 65 
}

But then this would become inaccessible, Since Symbol("a") == Symbol("a") //returns false in javascript. Hence for different Keys, same value can't be expected. Besides, JS objects are different from JSON Cick Here to see the definition of JSON. It doesn't mention Symbols.

[ritz078]

We should do what to_JSON() does in all cases.

[p-racoon]

I found this library named Opal should we use this or stick to building a compiler?

[ritz078]

you can use 3rd party libraries if they work

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.