dieseltravis · March 11, 2010 16:01 · Mar 11, 2010
diff --git a/cross_browser_cross_javascript_string_trim.js b/cross_browser_cross_javascript_string_trim.js
@@ -0,0 +1,20 @@
+// dbjdbj@gmail.com
+// Based on work by http://github.com/dieseltravis
+(function () {
+   var trimLeft = /^\s+/, trimRight = /\s+$/;
+  // Verify that \s matches non-breaking spaces (IE fails on this test)
+  if ( !/\s/.test( "\xA0" ) ) {
+    trimLeft = /^[\s\xA0]+/;
+     trimRight = /[\s\xA0]+$/;
+  }
+   // Use native String.prototype.trim function wherever possible
+   // Do not use String.trim. It is not part of ES5
+  window.dbj_trim = "function" === typeof "".trim ? function( text ) {
+      return ! text ? "" : String.prototype.trim.call( text.toString() );
+    } :
+    // Otherwise use our own trimming functionality
+    function( text ) {
+      return ! text ? "" : text.toString().replace( trimLeft, "" ).replace( trimRight, "" );
+    }
+
+}());