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

`map.isNotEmpty` returns `true` if the map is not empty and *contains key value pairs*;  otherwise, it returns `false`. 

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


#    
#  Syntax
```dart
void map_name.isNotEmpty
```

>  `map_name` is the name of the queue.
# 
#  Parameters
The `map.isNotEmpty` function does not require any parameters.
##
## Return value

If the map is not empty, the `map.isNotEmpty` function returns `true`. Otherwise, it returns `false`.

##
## Code
The following code shows how to use the `map.isNotEmpty` 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 not empty: ${map_1.isNotEmpty}");

  //map empty
  var map_2 = new Map();
  print("map_2 is not empty: ${map_2.isNotEmpty}");

}

What is the map.isNotEmpty method in Dart?

The map.isNotEmpty function in Dart returns true if a map has key-value pairs, otherwise false.