Intl.js | Compatibility implementation of the ECMAScript

I am trying to setup Storybook from scratch for a new project. I am hitting a wall and finding no useful information online around a babel/webpack issue that appears during build.

Note that I am able to correctly run Storybook locally, this issue only happens during build time.

The project has no webpack.config.js file as none came via the following commands.

How to diagnose further and fix the build issues?

Initial Set-up

• React Boilerplate: https://react-boilerplate.github.io/react-boilerplate-cra-template/
• Storybook out of the box set-up: https://storybook.js.org/docs/react/get-started/install

No issue running storybook locally

npm run storybook --debug-webpack

I have an issue with reading Draft.js raw content from localStorage.

I would like to use previously stored rawContent as my initialState for the reducer.

I think convertFromRaw function is my problem. I does crush silently (does not log to the console) and I don't know how to troubleshoot this.

I'm persisting Draft.js raw content in localStorage:

I have a React.js project based on React-Boilerplate 3.7.0 and I'm using its own webpack configurations files, that is to say webpack.base.babel.js, webpack.dev.babel.js and webpack.prod.babel.js. I've been looking for a solution in the web for a while and I was unable to find a way to solve this. In https://gitter.im/webpack/webpack there is a banner saying:

For questions please post on Stack Overflow and use the 'webpack' tag

So here I'm, once again. Webpack compiles the project with no errors and no warnings in development (if I run npm start), but if I run npm run build or npm run-script build it tells me:

After upgrading to angular7 the build in azure fails on the "npm install" step. Locally everything works fine.

I have tried:

1. Setting the clean option in the build definition to true and to "all directories".
2. Forcing an npm update "npm@latest -g" step before the install step
3. Setting the "WEBSITE_NODE_DEFAULT_VERSION" on the Application Settings in Portal to the same version as I have locally (10.14.1).

But I am still getting the following error output from the "npm install" step. (Notice that the agent is not using the same version as the default value is set to)

My last option (as I see it) is to delete the entire service and create a new one with the same name - but I would like to avoid that..

Regarding the last error in the output (npm ERR! 404 Not Found: har-validator@5.1.2), I have no idea what this is but it is not included in my package.json. I believe it might be something the cli packages is using?

I have been struggling mocking React-Intl library with Jest because I'm having this error when I run tests:

I'm facing an issue when defining an own custom format using handlebars.js and handlebars-intl.js.

According to Handlebars you define the formats like

Angular 2 docs tells us to use core-js to support some older browsers and Intl polyfill if this api is needed. But intl.js explain that it is now included in polyfill.io which serve (or not) the same purpose as core-js.

Thank you to tell me what are the differences between polyfill.io and core-js ?

I am trying to run ng test in Angular Cli project using phantom browser and I am getting below error. I googled it and realized that it has something to do with polyfill (Backward compatibility?). I want to understand what's wrong here and how to fix this issue. Thanks in advance!

PhantomJS 2.1.1 (Windows 7 0.0.0) ERROR TypeError: undefined is not an object (evaluating '(_a = ((Object))).assign.apply') at webpack:///~/@angular/common/src/pipes/intl.js:187:0 <- src/test.ts:34449