return StringUtil.contains(source, search) > 0;
    }
    
    /**
        Determines if string is blank or contains only tabs, linefeeds, carriage returns and spaces.
        
        @param source: String to check if empty.
        @return Returns &lt;code>true&lt;/code> if string is empty; otherwise &lt;code>false&lt;/code>.
    */
    public static function isEmpty(source:String):Boolean {
        return ObjectUtil.isEmpty(StringUtil.removeWhitespace(source));
    }
    
    /**
        Determines if cr