add 'some', 'all', 'none' operators

[internalfx]

These new operators allow you to run tests on arrays of objects.

First argument is an array. Second is a logic object.

The logic object is run with a local scope of each item.

let data = {
  cart: {
    items: [{
      qty: 2,
      rate: 49.99,
      sku: 'amno-90'
    }, {
      qty: 1,
      rate: 144.99,
      sku: 'nepr-300'
    }, {
      qty: 1,
      rate: 129.99,
      sku: 'synt-360'
    }]
  }
}

let someLogic = {
  some: [
    {var: 'cart.items'},
    {
      '===': [{var: 'sku'}, 'amno-90']
    }
  ]
}

let allLogic = {
  all: [
    {var: 'cart.items'},
    {
      '>': [{var: 'qty'}, 0]
    }
  ]
}

let noneLogic = {
  none: [
    {var: 'cart.items'},
    {
      '<': [{var: 'qty'}, 1]
    }
  ]
}

console.log(jsonLogic.apply(someLogic, data)) // true
console.log(jsonLogic.apply(allLogic, data)) // true
console.log(jsonLogic.apply(noneLogic, data)) // true

[jwadhams]

Wow, my sincere apologies, I didn't understand what you were doing here until I opened the PR, and this is a really clever addition to the language.

Can you take a look at this branch and see if I'm hitting the same requirements you have? https://github.com/jwadhams/json-logic-js/tree/sets

Your test cases above pass, and I've got a dozen I'll be adding to the shared unit tests so I can port it to PHP and ping the Ruby implementer.

I changed your approach slightly because:

1. We have a general rule for "first parameter isn't a rule" that it should be returned unevaluated so I wanted to expand is_logic rather than special casing empty object.
2. [].includes is not supported in any version of IE, so I rewrote it as a simple for loop that exits as early as possible.

Thanks again for your contribution!

[internalfx]

Thanks @jwadhams, we are using these features in production right now.

I'm not sure what you are asking me to do here though.

[jwadhams]

Sorry, what I mean is: I'm about to roll these three operations into the standard JavaScript library.

They're in the shared unit tests, lines 291-414: https://github.com/jwadhams/json-logic/blob/gh-pages/tests.json

They're listed on the Operations page of the docs (with a disclaimer): http://jsonlogic.com/operations.html#all-none-and-some

But my implementation is slightly different from yours (to get IE compatibility mostly), and I wanted to make sure this makes your life better instead of worse. So for the moment it's checked into the main package with the tag 1.1.3-sets or on NPM as json-logic-js@sets. If you could test it out, I'd really appreciate it.