Basic operators

Object operators

Operators used to perform object operations.

$getValue

Gets the value of a property in an object.

{ "$getValue": { "input": "object", "key": "value" } }

expry({
  $getValue: { input: { item: "apple", qty: 25, price: 4.5 }, key: "qty" },
}); // 25

$mergeObjects

Merges objects into a single object.

{ "$mergeObjects": ["object", "object", "..."] }

expry({
  $mergeObjects: [{ item: "apple" }, { qty: 25, price: 4.5 }],
}); // { item: "apple", qty: 25, price: 4.5 }
expry({
  $mergeObjects: [{ item: "apple", qty: 10 }, { qty: 25 }, { price: 4.5 }],
}); // { item: "apple", qty: 25, price: 4.5 }

$objectToArray

Converts an object to an array of key-value pairs.

{ "$objectToArray": { "item": "apple", "qty": 25, "price": 4.5 } }

expry({ $objectToArray: { item: "apple", qty: 25, price: 4.5 } }); // [["item", "apple"], ["qty", 25], ["price", 4.5]]
expry({ $objectToArray: { item: "apple", price: 4.5 } }); // [["item", "apple"], ["price", 4.5]]

$setValue

Sets the value of a property in an object.

{ "$setValue": { "input": "array", "key": "string", "value": "any" } }

expry({
  $setValue: {
    input: { item: "apple", qty: 25, price: 4.5 },
    key: "qty",
    value: 30,
  },
}); // { item: "apple", qty: 30, price: 4.5 }
expry({
  $setValue: {
    input: { item: "apple", price: 4.5 },
    key: "qty",
    value: 30,
  },
}); // { item: "apple", qty: 30, price: 4.5 }
Conditional
String