升级到 Angular 8 后出现 d3.js 运行时错误 [英] d3.js runtime error after upgrade to Angular 8
问题描述
我正在尝试将我的 Angular 6 应用程序升级到 Angular 8.我的代码可以编译,但我立即收到一个运行时错误d3.js:8 Uncaught TypeError: Cannot read property 'document' of undefined".
I am experimenting with upgrading my Angular 6 application to Angular 8. My code compiles, but I immediately receive a run-time error "d3.js:8 Uncaught TypeError: Cannot read property 'document' of undefined".
d3.js 中失败的那一行是 var d3_document = this.document;
.这让我相信 Angular 8 在严格模式下运行 d3.js.我有最新版本的 d3 节点模块 ("d3": "3.5.17"),它显然不支持严格模式;我的理解是this"应该引用窗口对象,但在严格模式下不起作用.
The line failing in d3.js is var d3_document = this.document;
. This leads me to believe that Angular 8 is running d3.js in strict mode. I have the latest version of the d3 node module ("d3": "3.5.17"), and it apparently does not support strict mode; my understanding is "this" is supposed to reference the window object but that does not work in strict mode.
我知道 Angular 8 现在使用 dart-sass 而不是 node-sass,据说它更严格.我确实尝试安装 node-sass 来使用它而不是 dart-sass(按照升级文档的建议),但我很确定这与 sass 无关.
I know Angular 8 now uses dart-sass instead of node-sass, which is supposedly stricter. I did try installing node-sass to use it instead of dart-sass (as recommended by the upgrade documentation), but I am pretty sure this is not sass related.
我会注意到我的其他一些包需要更新,因为它们依赖于 Angular 6 的包,但我不知道这会如何影响他的 d3 错误.
I will note that some of my other packages need to be updated because they are dependent on Angular 6's packages, but I don't see how this would effect his d3 error.
我也试过在我的 tsconfig.json 文件中明确说 "noImplicitUseStrict": false,
,但收到了同样的错误.我也试过 "noImplicitUseStrict": true,
没有运气.
I have also tried explicitly saying "noImplicitUseStrict": false,
in my tsconfig.json file, but received the same error. I have also tried "noImplicitUseStrict": true,
with no luck.
我参考了这个堆栈溢出帖子,它解决了同样的错误:D3.js : Uncaught TypeError: Cannot read property 'document' of undefined,以及引用的解决方案:https://stackoverflow.com/questions/33821312/How-to-remove-global-use-strict-adding-by-babel;但是我很难将这些应用于我的情况,因为我正在处理一个 Angular 项目并且不确定 babel 是否适用或如何修改 babel 选项.
I have referenced this stack overflow post which addresses the same error: D3.js : Uncaught TypeError: Cannot read property 'document' of undefined, and the referenced solution: https://stackoverflow.com/questions/33821312/how-to-remove-global-use-strict-added-by-babel; but I am having a difficult time applying these to my situation because I am working with an Angular project and unsure if babel applies or how to modify the babel options.
完全错误:
d3.js:8 Uncaught TypeError: Cannot read property 'document' of undefined
at d3.js:8
at Object../node_modules/d3/d3.js (d3.js:9554)
at __webpack_require__ (bootstrap:83)
at Module../dist/core-services/fesm2015/core-services.js (core-services.js:1)
at __webpack_require__ (bootstrap:83)
at Module../src/app/app.component.ts (main-es2015.js:22262)
at __webpack_require__ (bootstrap:83)
at Module../src/app/app.module.ts (app.component.ts:21)
at __webpack_require__ (bootstrap:83)
at Module../src/main.ts (main.ts:1)
(anonymous) @ d3.js:8
./node_modules/d3/d3.js @ d3.js:9554
__webpack_require__ @ bootstrap:83
./dist/core-services/fesm2015/core-services.js @ core-services.js:1
__webpack_require__ @ bootstrap:83
./src/app/app.component.ts @ main-es2015.js:22262
__webpack_require__ @ bootstrap:83
./src/app/app.module.ts @ app.component.ts:21
__webpack_require__ @ bootstrap:83
./src/main.ts @ main.ts:1
__webpack_require__ @ bootstrap:83
0 @ main.ts:17
__webpack_require__ @ bootstrap:83
checkDeferredModules @ bootstrap:45
webpackJsonpCallback @ bootstrap:32
(anonymous) @ main-es2015.js:1
预计没有错误.有没有办法指定我不希望这个节点模块在严格模式下运行?
Expected no error. Is there a way to specify that I do not want this node module to run in strict mode?
推荐答案
从昨天早上开始我就遇到了同样的问题,但我现在已经解决了.
I have just experienced the same issue since yesterday morning, but I have now fixed it.
在我的 package.json 中,我使用以下包:
Within my package.json I use the following packages:
"d3": "^3.5.17",
"ng2-nvd3": "^2.0.0",
"nvd3": "^1.8.6"
这里真正的问题是 D3 库还没有为 ES2015/ES6 做好准备.
The real problem here is that the D3 libraries are not ready for ES2015/ES6.
因此,要解决此问题,您需要更改 Angular 解决方案的 tsconfig.json 文件中的 2 项.
So to fix this, you need to change 2 items within your Angular solution's tsconfig.json file.
module = es2015 而不是 esnext
module = es2015 and NOT esnext
target = es5 而不是 es2015
target = es5 and NOT es2015
所以完整的 tsconfig.json 应该是这样的:
So the full tsconfig.json should look like this:
{
"compileOnSave": false,
"compilerOptions": {
"baseUrl": "./",
"importHelpers": true,
"outDir": "./dist/out-tsc",
"sourceMap": true,
"declaration": false,
"module": "es2015",
"moduleResolution": "node",
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"target": "es5",
"typeRoots": [
"node_modules/@types"
],
"lib": [
"es2018",
"dom"
]
}
}
要查看实际图表,请在此处查看我的教程:http://www.exodus-cloud.co.uk/tutorials/angular-charting-nvd3
To see charts in action, take a look at my tutorial here: http://www.exodus-cloud.co.uk/tutorials/angular-charting-nvd3
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