2. StringBuffer copying method

Description:

This method is a Java class in a StringBuffer to imitate, not the efficiency of Java could, but for string assembly, but is a good tool to approach 



//StringBuffer工具方法
//数组方式 拼接字符串 .高效... 使用前先实例化.
function StringBuffer(){
     this._aStr = [];
}
            
StringBuffer.prototype.add = function(str){
      this._aStr.push(str);
      return this;
}
StringBuffer.prototype.toString = function(){
      return this._aStr.join('');
}

Use are as follows: 

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
        <title>Untitled Document</title>
        <script type="text/javascript">
          //StringBuffer工具方法
        //数组方式 拼接字符串 .高效... 使用前先实例化.
            function StringBuffer(){
                this._aStr = [];
            }
            
            StringBuffer.prototype.add = function(str){
                this._aStr.push(str);
	return this;
            }
            StringBuffer.prototype.toString = function(){
                return this._aStr.join('');
            }
			
            var tempStr = new StringBuffer();	
            tempStr.add("test+++")
	        .add("test1 append()+++++")
	        .add("test+++")
	        .add("test1 append()+++++")
	        .add("test+++")
	        .add("test1 append()+++++")
	        .add("test+++")
	        .add("test1 append()+++++")
	        .add("test+++")
	        .add("test1 append()+++++")
	        .add("test+++")
	        .add("test1 append()+++++")
	        .add("test+++")
	        .add("test1 append()+++++")
	        .add("test+++")
	        .add("test1 append()+++++")
	        .add("test+++")
	        .add("test1 append()+++++");
        </script>
    </head>
    <body>    </body>
</html>