一段js代码在dev环境没有问题，build之后执行就会报Cannot read property 'index' of undefined #5786
Description
发行方式
小程序
具体平台
微信小程序开发者工具
开发环境
Windows
项目创建方式
CLI命令行
依赖版本
{
"name": "preset-vue",
"version": "0.0.0",
"scripts": {
"dev:custom": "uni -p",
"dev:h5": "uni",
"dev:h5:ssr": "uni --ssr",
"dev:mp-alipay": "uni -p mp-alipay",
"dev:mp-baidu": "uni -p mp-baidu",
"dev:mp-jd": "uni -p mp-jd",
"dev:mp-kuaishou": "uni -p mp-kuaishou",
"dev:mp-lark": "uni -p mp-lark",
"dev:mp-qq": "uni -p mp-qq",
"dev:mp-toutiao": "uni -p mp-toutiao",
"dev:mp-weixin": "uni -p mp-weixin",
"dev:mp-xhs": "uni -p mp-xhs",
"dev:quickapp-webview": "uni -p quickapp-webview",
"dev:quickapp-webview-huawei": "uni -p quickapp-webview-huawei",
"dev:quickapp-webview-union": "uni -p quickapp-webview-union",
"build:custom": "uni build -p",
"build:h5": "uni build",
"build:h5:ssr": "uni build --ssr",
"build:mp-alipay": "uni build -p mp-alipay",
"build:mp-baidu": "uni build -p mp-baidu",
"build:mp-jd": "uni build -p mp-jd",
"build:mp-kuaishou": "uni build -p mp-kuaishou",
"build:mp-lark": "uni build -p mp-lark",
"build:mp-qq": "uni build -p mp-qq",
"build:mp-toutiao": "uni build -p mp-toutiao",
"build:mp-weixin": "uni build -p mp-weixin",
"build:mp-xhs": "uni build -p mp-xhs",
"build:quickapp-webview": "uni build -p quickapp-webview",
"build:quickapp-webview-huawei": "uni build -p quickapp-webview-huawei",
"build:quickapp-webview-union": "uni build -p quickapp-webview-union",
"type-check": "vue-tsc --noEmit"
},
"dependencies": {
"@dcloudio/uni-app": "3.0.0-4030620241128001",
"@dcloudio/uni-app-harmony": "3.0.0-4030620241128001",
"@dcloudio/uni-app-plus": "3.0.0-4030620241128001",
"@dcloudio/uni-components": "3.0.0-4030620241128001",
"@dcloudio/uni-h5": "3.0.0-4030620241128001",
"@dcloudio/uni-mp-alipay": "3.0.0-4030620241128001",
"@dcloudio/uni-mp-baidu": "3.0.0-4030620241128001",
"@dcloudio/uni-mp-jd": "3.0.0-4030620241128001",
"@dcloudio/uni-mp-kuaishou": "3.0.0-4030620241128001",
"@dcloudio/uni-mp-lark": "3.0.0-4030620241128001",
"@dcloudio/uni-mp-qq": "3.0.0-4030620241128001",
"@dcloudio/uni-mp-toutiao": "3.0.0-4030620241128001",
"@dcloudio/uni-mp-weixin": "3.0.0-4030620241128001",
"@dcloudio/uni-mp-xhs": "3.0.0-4030620241128001",
"@dcloudio/uni-quickapp-webview": "3.0.0-4030620241128001",
"clipboard": "^2.0.11",
"dayjs": "^1.11.13",
"jsencrypt": "^3.3.2",
"pinia": "^3.0.1",
"uview-plus": "^3.4.5",
"vue": "^3.4.21",
"vue-i18n": "^9.1.9"
},
"devDependencies": {
"@dcloudio/types": "^3.4.8",
"@dcloudio/uni-automator": "3.0.0-4030620241128001",
"@dcloudio/uni-cli-shared": "3.0.0-4030620241128001",
"@dcloudio/uni-stacktracey": "3.0.0-4030620241128001",
"@dcloudio/vite-plugin-uni": "3.0.0-4030620241128001",
"@uni-helper/uni-app-types": "1.0.0-alpha.6",
"@uni-helper/uni-ui-types": "1.0.0-alpha.6",
"@vue/runtime-core": "^3.4.21",
"@vue/tsconfig": "^0.1.3",
"sass": "^1.63.2",
"sass-loader": "~10.4.1",
"typescript": "^4.9.4",
"unplugin-auto-import": "^19.1.1",
"vite": "5.2.8",
"vue-tsc": "^1.0.24"
}
}
问题描述
for (let y = -opts.verticalGap / 2; y < canvasHeight.value; y += opts.verticalGap) { const xOffset = y % (opts.verticalGap * 2) === 0 ? 0 : opts.horizontalGap / 2; for (let x = -textWidth + xOffset; x < canvasWidth.value; x += opts.horizontalGap) { ctx.save(); ctx.translate(x, y); ctx.rotate(rotation); ctx.fillText(text, 0, 0); ctx.restore(); } }
这段代码在dev环境执行没有任何问题，build在跑就会报Cannot read property 'index' of undefined
重现步骤
代码build之后会报错
期望行为
No response
实际行为
No response
截图或录屏
No response