dotmap 1.0.1

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

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