Prompt Title: algorithm

The allMatches() method in Dart is a method of the RegExp class which is used to find all the occurrences of the given pattern in a string. It returns an iterable of Match objects representing the matches found.

The syntax for using the allMatches() method is as follows:

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Iterable<Match> allMatches(String str)

where str is the string to search for matches in.

The allMatches() method searches for all non-overlapping occurrences of the regular expression in the string, and returns an iterable of Match objects representing these occurrences.

Each Match object contains information about the matching substring, including the starting and ending indices of the match, as well as the actual matched substring itself.

Here is an example of using the allMatches() method to find all the occurrences of a pattern in a string:

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RegExp regExp = RegExp(r'\d+'); // Matches one or more digits
String str = 'The quick brown fox jumps over the lazy dog 123 times.';

Iterable<Match> matches = regExp.allMatches(str);

for (Match match in matches) {
  print('Match found at index ${match.start} - ${match.end}: ${match.group(0)}');
}

In this example, we are searching for all occurrences of one or more digits in the given string. The allMatches() method returns an iterable of Match objects representing the matches found, which we then loop through and print out the start and end indices of each match, as well as the actual matched substring.