Dart RegExp isMultiLine
Syntax & Examples

RegExp.isMultiLine property

The `isMultiLine` property in Dart's `RegExp` class determines whether the regular expression matches multiple lines.

Syntax of RegExp.isMultiLine

The syntax of RegExp.isMultiLine property is:

 bool isMultiLine

This isMultiLine property of RegExp whether this regular expression matches multiple lines.

Return Type

RegExp.isMultiLine returns value of type bool.


✐ Examples

1 Single Line Matching

In this example,

  1. We create two regular expressions, `regex1` and `regex2`, with patterns 'hello' and '^hello' respectively.
  2. We print the `isMultiLine` property of each regex.

Dart Program

void main() {
  RegExp regex1 = RegExp('hello');
  RegExp regex2 = RegExp('^hello', multiLine: true);
  print('regex1.isMultiLine: ${regex1.isMultiLine}');
  print('regex2.isMultiLine: ${regex2.isMultiLine}');
}

Output

regex1.isMultiLine: false
regex2.isMultiLine: true

2 Single Line Matching

In this example,

  1. We create a regular expression `regex` with pattern '^Hello' and set the `multiLine` flag to false.
  2. We print the `isMultiLine` property of the regex.

Dart Program

void main() {
  RegExp regex = RegExp('^Hello', multiLine: false);
  print('regex.isMultiLine: ${regex.isMultiLine}');
}

Output

regex.isMultiLine: false

3 Single Line Matching

In this example,

  1. We create a regular expression `regex` with pattern 'World' and set the `multiLine` flag to false.
  2. We print the `isMultiLine` property of the regex.

Dart Program

void main() {
  RegExp regex = RegExp('World', multiLine: false);
  print('regex.isMultiLine: ${regex.isMultiLine}');
}

Output

regex.isMultiLine: false

Summary

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