aboutsummaryrefslogtreecommitdiffstats
path: root/lib/utils.coffee
diff options
context:
space:
mode:
Diffstat (limited to 'lib/utils.coffee')
-rw-r--r--lib/utils.coffee6
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/utils.coffee b/lib/utils.coffee
index b7f8731a..81b0fb49 100644
--- a/lib/utils.coffee
+++ b/lib/utils.coffee
@@ -110,6 +110,12 @@ Utils =
# detects both literals and dynamically created strings
isString: (obj) -> typeof obj == 'string' or obj instanceof String
+ # Transform "zjkjkabz" into "abjkz".
+ uniqueCharacters: (str) ->
+ unique = ""
+ for char in str.split("").sort()
+ unique += char unless 0 <= unique.indexOf char
+ unique
# Compares two version strings (e.g. "1.1" and "1.5") and returns
# -1 if versionA is < versionB, 0 if they're equal, and 1 if versionA is > versionB.