Sha256: fac134556ba3745ad4ab36808c747dea478d13e1bae175d8190d0784457312c0
Contents?: true
Size: 973 Bytes
Versions: 135
Compression:
Stored size: 973 Bytes
Contents
class WordCount {
Map<String, int> countWords(String input) {
Map<String, int> count = new Map();
/// make a list of all words using regex.
/// \\w+ matches any number of letters
/// e.g. one two three
/// \\w+'\\w => matches any number of letters then "'" and then a single letter
/// e.g. don't
/// \\d+ matches one or more digits
List<String> allWords = new List();
var wordMatches = new RegExp("\\w+'\\w|\\w+|d+").allMatches(input.toLowerCase());
for (var match in wordMatches) {
allWords.add(match.group(0));
}
/// Lists aka "arrays" have a forEach method that applies a function to
/// each element of the list.
/// initialize the Map with all words and there counter to 0
allWords.forEach((singleWord) => count[singleWord] = 0);
/// count all words and set there counter accordingly
allWords.forEach((singleWord) => count[singleWord] = count[singleWord] + 1);
return count;
}
}
Version data entries
135 entries across 135 versions & 1 rubygems