Reference a key with a dot in it

[jwhitaker-swiftnav]

Hey,
Say I have an object

{"my.key":"abc"}

how can I reference this with jsonlogic? if I do

{"var":"my.key"}

it looks for a nested field, but there doesn't seem to be any way to quote the key or avoid this behaviour by other means.

[Emilien-Greenomy]

In case you're still looking, here's a quick and dirty workaround:

jsonLogic.add_operation('dotvar', function(key){ return this[key] })
​
jsonLogic.apply(
  {
    dotvar: [
      'foo.bar'
    ]
  },
  {'foo.bar': true}
)

You might want to do something more sophisticated, e.g. using lodash get function, which can work with path as arrays of keys and also use bracket notation such as baz["foo.bar"].

[TotalTechGeek]

This is copied from another issue

Hey there, this was a primary motivator for the JSON Logic Community project to consider moving towards an alternative operator without the pathing syntax: https://github.com/orgs/json-logic/discussions/18

This syntax is available in json-logic-engine, but to build this into json-logic-js, you could use the following

logic.add_operation('val', function () {
  let data = this
  for (let i = 0; i < arguments.length; i++) {
    if (data === null || data === undefined) return null
    data = data[arguments[i]]
  }
  if (data === undefined) return null
  return data
})

Which would mean you could use

{ "val": "1.2TB" }

Without issue.

And to access nested properties,

{ "val": ["1.2TB", "Specs"] }