--- /dev/null
+var toString = require('../lang/toString');
+var WHITE_SPACES = require('./WHITE_SPACES');
+var ltrim = require('./ltrim');
+var rtrim = require('./rtrim');
+ /**
+ * Remove white-spaces from beginning and end of string.
+ */
+ function trim(str, chars) {
+ str = toString(str);
+ chars = chars || WHITE_SPACES;
+ return ltrim(rtrim(str, chars), chars);
+ }
+
+ module.exports = trim;
+