Allows you to create, set and get Map rows using dot notated strings.

Features

Using dot notated strings we can easily:

• Create a nest of maps and specify the value of the last key.
• Set the value of a key in a deeply nested map.
• Get the value of a key in a deeply nested map.
• Merge a list of maps (for convinience).

Usage

PathValue

Before we can create a row in a Map we need to create PathValue objects.

final row1 = PathValue(path: '1.2', value: {'3': 4}),
final row2 = PathValue(path: '5.6', value: {'7': 8}),

create()

We can create a single or multi dimensional row(s) inside a Map by supplying the create() method with a single or multiple PathValue objects.

// Simply supply a list of `PathValue` objects.
final row1 = PathValue(path: '1.2', value: {'3': 4}),
final row2 = PathValue(path: '5.6', value: {'7': 8}),

final map = MapPaths.create([row1, row2]);

// Gives us a `Map` as:
{
  {'1': {'2': {'3': 4}}},
  {'5': {'6': {'7': 8}}}
}

set()

We can set the value of a path by supplying a dot notated String and a value of dynamic type.

// The value at the end of the path is 4.
final map = {'1': {'2': {'3': 4}}};

// Now we set the end value to 5.
final modifiedMap = MapPaths.set(map, '1.2.3', 5);

get()

We can get the value of a key by using a dot notated String.

// The value at the end of the path is 4.
final map = {'1': {'2': {'3': 4}}};

// Will return 4.
final keyValue = MapPaths.get(map, '1.2.3');

Additional information

Feel free to direct issues and suggestions on the Github page.

Author: Paurini Wiringi