transformObjectDeep.md

transformObjectDeep (source code)

• Curried: false
• Failsafe status: failsafe by default

The transformObjectDeep function passes each key and value of the given object (recursively) to the provided transformer function. It reconstructs an object of the same hierarchy with the key-value pairs that the transformer function returns.

Arguments:

• object: The object or array to be modified.
• keyValueTransforme: The transformer function that receives the key and value as parameters. It should return a key-value pair.
• objectPreProcessor: An object transformer which will be executed on every value (including the supplied object itself) before any processing is done to it. (optional)

Usage:

transformObjectDeep(
  {
    name: "Oliver",
    email: "oliver@example.com",
    address: { street: "First street", pin: 123456 },
  },
  (key, value) => [key.toUpperCase(), value]
);
/*
output: {
  NAME: "Oliver",
  EMAIL: "oliver@example.com",
  ADDRESS: { STREET: "First street", PIN: 123456 },
}
*/

transformObjectDeep(
  [
    [1, 2, 3],
    [4, 5, 6],
    [7, 8, 9],
  ],
  (key, value) => [key, value],
  item => (Array.isArray(item) ? item.slice(1) : item)
);
/*
output: [[5, 6], [8, 9]]
*/