fix(deps-dev): bump react-scripts from 3.2.0 to 3.3.0

[dependabot-preview]

Bumps react-scripts from 3.2.0 to 3.3.0.

Changelog

Sourced from react-scripts's changelog.

3.3.0 (2019-12-04)

v3.3.0 is a minor release that adds new features, including custom templates and support for the new optional chaining and nullish coalescing operators.

Custom Templates

You can now create a new app using custom templates.

We've published our existing templates as cra-template and cra-template-typescript, but we expect to see many great templates from the community over the coming weeks.

The below command shows how you can create a new app with cra-template-typescript.

npx create-react-app my-app --template typescript

Note that you can omit the prefix cra-template- when specifying which template you would like. For TypeScript users, we're deprecating --typescript in favour of --template typescript.

If you don't set a template, we'll create your new app with cra-template - which is just a new name for our base template.

Optional Chaining and Nullish Coalescing Operators

We now support the optional chaining and nullish coalescing operators!

// Optional chaining
a?.(); // undefined if `a` is null/undefined
b?.c; // undefined if `b` is null/undefined

// Nullish coalescing
undefined ?? 'some other default'; // result: 'some other default'
null ?? 'some other default'; // result: 'some other default'
'' ?? 'some other default'; // result: ''
0 ?? 300; // result: 0
false ?? true; // result: false

If your're using TypeScript, you will need to upgrade your typescript dependency to 3.7.0 or later if you wish to use the new operators.

If you're using Visual Studio Code 1.40 (the latest as of this release) or earlier, you will need to configure your editor if you want it to understand the new operators.

If you're using TypeScript in your project and have already upgrade its version as described above, then you can configure VS Code to Use Workspace Version of TypeScript. If your project isn't using TypeScript, you can use the JavaScript and TypeScript Nightly extension until VS Code releases a newer version including TypeScript 3.7.0 or newer.

Numeric Separators

We've added support for numeric separators to improve readability of numeric literals.

1000000000; // Is this a billion? a hundred millions? Ten millions?
101475938.38; // what scale is this? what power of 10?
</tr></table> ... (truncated)

Commits

• 9a817dd Publish
• f6ba862 Add TypeScript peer dependency to react-scripts (#8038)
• 1a66971 Bump dependencies (#8024)
• 82009f5 Bump webpack-dev-server (#7988)
• 23d5776 Add scripts support to templates (#7989)
• 58b4738 Bump dependencies (#7986)
• 915108b Add placeholders where old template READMEs used to be (#7972)
• f01bfac Upgrade jest-watch-typeahead (#7956)
• 5cdc3cc Add tests for optional chaining and null coalescing (#7952)
• 211694a Fix CI (#7951)
• Additional commits viewable in compare view

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[dqunbp]

@dependabot rebase