How to check if a List is Not Empty in Dart

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How to check if a List is Not Empty in Dart ?

Answer

To check if a list is not empty in Dart, you can use the isNotEmpty property of the List class.

✐ Examples

1 Check if a List with Elements is Not Empty

In this example,

We create a list named myList with some elements.
We use an if statement to check if myList is not empty by using the isNotEmpty property.
If the list is not empty, the code inside the if block is executed.
We print a message indicating that the list is not empty.

Dart Program

void main() {
    List<int> myList = [1, 2, 3];
    
    if (myList.isNotEmpty) {
        print('The list is not empty');
    } else {
        print('The list is empty');
    }
}

Output

The list is not empty

2 Check if an Empty List is Not Empty

In this example,

We create a list named emptyList without any elements.
We use an if statement to check if emptyList is not empty by using the isNotEmpty property.
Since the list is empty, the code inside the else block is executed.
We print a message indicating that the list is empty.

Dart Program

void main() {
    List<int> emptyList = [];
    
    if (emptyList.isNotEmpty) {
        print('The list is not empty');
    } else {
        print('The list is empty');
    }
}

Output

The list is empty

Summary

In this tutorial, we learned How to check if a List is Not Empty in Dart language with well detailed examples.

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How to check if a List is Not Empty in Dart

How to check if a List is Not Empty in Dart ?

Answer

✐ Examples

1 Check if a List with Elements is Not Empty

Dart Program

Output

2 Check if an Empty List is Not Empty

Dart Program

Output

Summary

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