Searching by [in array]

[jbotte]

Storing geojson offline for a node application, looking to do queries such as...

Find all features that are in cat 4,

find all features in cat 4 or cat 8

things like that.

[mmckegg]

You can use the ~ to match items in an array. But unfortunately it will only work with strings:

var jsonQuery = require('../')
var data = {
  features: {
    0: {
      type: 'Feature',
      cats: ['4', '8']
    },
    1: {
      type: 'Feature',
      cats: ['8', '9']
    }
  }
}

var result = jsonQuery('features[**][*cats~4|cats~9]', {data})
console.log(result.value)

Although potentially you could pass the cats as params which would let you use numbers:

var jsonQuery = require('../')
var data = {
  features: {
    0: {
      type: 'Feature',
      cats: [4, 8]
    },
    1: {
      type: 'Feature',
      cats: [8, 9]
    }
  }
}

var result = jsonQuery(['features[**][*cats~?|cats~?]', 8, 9], {data})
console.log(result.value)

Otherwise you can always create a helper function.

[JayCole]

Can you add your examples to the documentation.
This answer helped me a lot.
Thanks.
Here's what I need to do.
get a list of jobs with Roll Forming.

var data = {
    "jobs": [{
        "id": "1234fsfs44234",
        "number": "126545",
        "name": "jones",
        "description": [ "install", "roll form" ],  
        "asignedto": ["bill", "jay"],			
    }, {
        "id": "1234f4",
        "number": "12345",
        "name": "smith",
        "description": [ "install", "roll form" ],  
        "asignedto": ["jay", "bill"],		
    }]
}

var result = jsonQuery('jobs[**][*description~roll form]', {data})
console.log(result.value)

I can see you've made a "OR"operator "|" is there also an "AND" operator "&"?
[*description~roll form & asignedto~jay] index aligned if description[1] = true & asingedto must also be in index[1] to be = true