From 095b6ca0f28ac2b3bef7d1701f1b2f57e15845cc Mon Sep 17 00:00:00 2001
From: fayeah <411596701@qq.com>
Date: Fri, 11 Sep 2020 22:52:22 +0800
Subject: [PATCH] Update index.js

replace var with const
---
 pages/treemap/index.js | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/pages/treemap/index.js b/pages/treemap/index.js
index ad626a6..7faa400 100644
--- a/pages/treemap/index.js
+++ b/pages/treemap/index.js
@@ -9,15 +9,15 @@ function initChart(canvas, width, height, dpr) {
     devicePixelRatio: dpr // new
   });
   canvas.setChart(chart);
-  var data = [];
+  const data = [];
 
-  for (var i = 0; i <= 360; i++) {
-    var t = i / 180 * Math.PI;
-    var r = Math.sin(2 * t) * Math.cos(2 * t);
+  for (const i = 0; i <= 360; i++) {
+    const t = i / 180 * Math.PI;
+    const r = Math.sin(2 * t) * Math.cos(2 * t);
     data.push([r, i]);
   }
 
-  var option = {
+  const option = {
     title: {
       text: '2014年中国耕地质量',
       left: 'center',
@@ -180,4 +180,4 @@ Page({
   },
 
   onReady() { }
-});
\ No newline at end of file
+});