我在项目中使用最新的echarts ，别的浏览器都好，就在在IE8下面报错，请大神抱我看看，谢谢，

Question

报错信息如下图，请帮我看看，不胜感激

Answer 1

ie8   不支持indexOf

在你js之前加上

if (!Array.prototype.indexOf)
{
  Array.prototype.indexOf = function(elt /*, from*/)
  {
    var len = this.length >>> 0;
    var from = Number(arguments[1]) || 0;
    from = (from < 0)
         ? Math.ceil(from)
         : Math.floor(from);
    if (from < 0)
      from += len;
    for (; from < len; from++)
    {
      if (from in this &&
          this[from] === elt)
        return from;
    }
    return -1;
  };
}