_.updateWith

_.updateWith(object, path, updater, [customizer])

This method is like _.update except that it accepts customizer which is invoked to produce the objects of path. If customizer returns undefined path creation is handled by the method instead. The customizer is invoked with three arguments: (nsValue, key, nsObject).

Note: This method mutates object.

Since

4.6.0

Arguments

1. object (Object): The object to modify.
2. path (Array|string): The path of the property to set.
3. updater (Function): The function to produce the updated value.
4. [customizer] (Function): The function to customize assigned values.

Returns

(Object): Returns object.

Example

var object = {};
 
_.updateWith(object, '[0][1]', _.constant('a'), Object);
// => { '0': { '1': 'a' } }