Dart StringBuffer isNotEmpty
Syntax & Examples

StringBuffer.isNotEmpty property

The `isNotEmpty` property in Dart returns whether the buffer is not empty. It is a constant-time operation.

Syntax of StringBuffer.isNotEmpty

The syntax of StringBuffer.isNotEmpty property is:

 bool isNotEmpty

This isNotEmpty property of StringBuffer returns whether the buffer is not empty. This is a constant-time operation.

Return Type

StringBuffer.isNotEmpty returns value of type bool.


✐ Examples

1 Checking if a non-empty StringBuffer is not empty

In this example,

  1. We create a `StringBuffer` named `buffer` with the content 'Example'.
  2. We print the value of the `isNotEmpty` property, which should return `true` since the buffer is not empty.

Dart Program

void main() {
  StringBuffer buffer = StringBuffer('Example');
  print(buffer.isNotEmpty);
}

Output

true

2 Checking if an empty StringBuffer is not empty

In this example,

  1. We create an empty `StringBuffer` named `emptyBuffer`.
  2. We print the value of the `isNotEmpty` property, which should return `false` since the buffer is empty.

Dart Program

void main() {
  StringBuffer emptyBuffer = StringBuffer();
  print(emptyBuffer.isNotEmpty);
}

Output

false

Summary

In this Dart tutorial, we learned about isNotEmpty property of StringBuffer: the syntax and few working examples with output and detailed explanation for each example.