mapTree

mapTree(data, transformer) → object \| array · Object

Recursively transform all values in a nested structure (objects and arrays) by applying a transformer function. Walks the entire tree depth-first.

• data (required): nested object or array to traverse

• transformer (required): lambda (value, path) -> newValue

// Input: {a: "hello", b: {c: "world"}}
// Uppercase all string values, no matter how deeply nested
{
  result: mapTree($input, (v, p) ->
    if (typeOf(v) == "string") upperCase(v) else v
  )
  // {a: "HELLO", b: {c: "WORLD"}}
}