SVG numberOfItems 属性不起作用

Question

在最新更新后，我们的网站突然停止在 Chrome（只是 chrome）上运行......

给出的错误是

Uncaught TypeError: Cannot read property 'numberOfItems' of undefined

这是使用 numberOfItems 属性的地方：

// Absolutize and parse path to array
  , parse: function(array) {
      /* if it's already is a patharray, no need to parse it */
      if (array instanceof SVG.PathArray) return array.valueOf()

      /* prepare for parsing */
      var i, il, x0, y0, x1, y1, x2, y2, s, seg, segs
        , x = 0
        , y = 0

      /* populate working path */
      SVG.parser.path.setAttribute('d', typeof array === 'string' ? array : arrayToString(array))

      /* get segments */
      segs = SVG.parser.path.pathSegList


      for (i = 0, il = segs.numberOfItems; i < il; ++i) {
        seg = segs.getItem(i)
        s = seg.pathSegTypeAsLetter
etc. (I didn't put the whole loop)

为什么在最新的 Chrome 更新后 SVG 和 Javascript 无法读取此属性？有什么好的解决办法？

谢谢！！

Answer 1

Chrome removed the pathSeg 48 版界面。

There's more information in their public issue tracker

还有an issue tracking the implementation of the replacement API，同时还有polyfills available to reinstate support for the old API