JS字符串累加Array不一定比字符串累加快(根据电脑配置)

先贴出完整代码. 代码如下: [removed] function StringBuffer() { this._strings = new Array(); } StringBuffer.prototype.append = function(str) { this._strings.push(str); //StringBuffer.prototype.length = this._strings.length;//每多一行,就会多消耗处理时间 var i = “asdfasdf”; } StringBuffer.prototype.toStr