The **`map.isEmpty` function** in Dart is used to check if a map is empty or not.

`map.isEmpty` returns `true` if the map is empty, i.e., no key-value pairs exist. Otherwise, it returns `false`. 

The illustration below shows a visual representation of the `map.isEmpty` function:


#   
## Syntax

```dart
bool map_name.isEmpty
```
>  `map_name` is the name of the map.

## Parameter
The `map.isEmpty` function does not require any parameters.

## Return value

If the map is empty, the `map.isEmpty` function returns `true`. 

Otherwise, it returns `false`.


## Code
The following code shows how to use `map.isEmpty` function in Dart:


import 'dart:convert';

void main() {
  var map_1 = new Map();

  map_1 [1] = 'Tom';
  map_1 [2] = 'Alsvin';
  map_1 [3] = 'Eddie';
  //map containg key value pairs
  print("map_1 is empty: ${map_1.isEmpty}");

  //map empty
  var map_2 = new Map();
  print("map_2 is empty: ${map_2.isEmpty}");

}

What is the map.isEmpty method in Dart?

Checks if a Dart map has no key-value pairs, returning true if empty, false otherwise.