JS StringBuffer

/**
 *javascript StringBuffer
 *@author king
 *@since 2008-01-07
 ***/
function StringBuffer(){
    this.buffer = [];
    if(arguments[0])
        this.append(arguments[0]);
}

StringBuffer.prototype.append = function(){
    this.buffer.push(arguments[0]);
    return this;
}
StringBuffer.prototype.toString = function(){
    return this.buffer.join("");
}

StringBuffer.prototype.release = function(){
    this.buffer=[];
}