Ovilia commented on a change in pull request #9162: fix: #8962
闭合多边形时，如果第一个值为NaN，导致最后值也为NaN，渲染不出连接线。
URL: https://github.com/apache/incubator-echarts/pull/9162#discussion_r223249752
##########
File path: src/chart/radar/radarLayout.js
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@@ -38,7 +38,12 @@ export default function (ecModel) {
data.each(function (idx) {
// Close polygon
- points[idx][0] && points[idx].push(points[idx][0].slice());
+
+ let index = points[idx].findIndex(([x, y]) => {
Review comment:
不要用 ES6 的语法，跟 ECharts 项目保持一致吧。所以 let、findIndex、箭头表达式就不要用了。
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