Merge pull request #220 from bjorn/count_predicate

Added Sequence.count(predicate)
2015-03-23 07:35:17 -07:00
parent 89ebffb582 94804fe1a0
commit c9226256ff
7 changed files with 52 additions and 2 deletions
@@ -62,6 +62,16 @@ static const char* libSource =
 "    return result\n"
 "  }\n"
 "\n"
+"  count(f) {\n"
+"    var result = 0\n"
+"    for (element in this) {\n"
+"      if (f.call(element)) {\n"
+"        result = result + 1\n"
+"      }\n"
+"    }\n"
+"    return result\n"
+"  }\n"
+"\n"
 "  map(f) {\n"
 "    var result = new List\n"
 "    for (element in this) {\n"