Every CYF session begins with an energiser. Usually there’s a rota showing who will lead the energiser. We have some CYF favourite games you can play if you are stuck.

Traffic Jam: re-order the cars to unblock yourself
Telephone: draw the words and write the pictures
Popcorn show and tell: popcorn around the room and show one nearby object or something in your pocket or bag and explain what it means to you.

Learning Objectives

Discuss hard and soft skills in a tech team
Describe different roles in tech teams
Explain the importance of agreeing on clear goals for the team

Preparation

You must have done the prep work.

Introduction

Collaborative software development equals higher-quality products and efficient development cycles. Team synergy, knowledge, and diverse skills are crucial to achieving this. We are going to talk about these roles and their responsibilities.

Brainstorm about teamwork in the tech industry.

🎯 Goal: Discuss teamwork in the tech industry. (30 minutes)

Think about the teams you will work with in tech. Discuss in your team:

What is your dream job?
What professional roles will be in your team?
What other people/teams will you interact with?
What non-technical skills will you bring?
What non-technical skills should you develop while at CYF?
Which of the Belbin’s tole do you identify strongest with?

Define which team member will be the time keeper for your team.
Work in your teams for about 10 minutes and write down brief answers to each question.
Assign one of the team members as speaker to deliver your answers back to the class in maximum 2 minutes.

Discuss the roles in a product team

🎯 Goal: To discuss the importance of different roles in tech teams. (15 minutes)

The following are the roles typically found within a development team. As you see, there are plenty of roles other than ‘Full-Stack Developer’.

Discuss as a class the responsibilities of the following tech roles.

Write a brief description for each of them on a post-it and share the post it on a collaborative board:

Front-end web developer
Back-end web developer
UX/UI designer
UX researcher
Product manager
Quality Assurance/Quality Engineer (tester)
Tech lead

Team Charter

🎯 Goal: To discuss the importance of setting clear goals and responsibilities within a team. (15 minutes)

You might come across a ceremony called “team charter” in your future work.

Team charters define roles, responsibilities and ways of working. If these are not clear to you when you join a new company, you should ask and seek clarification urgently.

Discuss as a class:

Why is it important for your team to understand their main goal?
Why is it important for everybody on your team to understand the role each other plays?
What happens when you are not clear about these two points?

Spend the rest of your time clarifying any questions about the project and the coursework for the first week.

A quick break of fifteen minutes so we can all concentrate on the next piece of work.

What are we doing now?

You’re going to use this time to work through coursework. Your cohort will collectively self-organise to work through the coursework together in your own way. Sort yourselves into groups that work for you.

Use this time wisely

You will have study time in almost every class day. Don’t waste it. Use it to:

work through the coursework
ask questions and get unblocked
give and receive code review
work on your portfolio
develop your own projects

🛎️ Code waiting for review 🔗

Below are trainee coursework Pull Requests that need to be reviewed by volunteers.

Bump @babel/traverse from 7.21.4 to 7.23.2 🔗

Bumps @babel/traverse from 7.21.4 to 7.23.2.

Release notes

Sourced from @babel/traverse's releases.

v7.23.2 (2023-10-11)
NOTE: This release also re-publishes @babel/core, even if it does not appear in the linked release commit.
Thanks @jimmydief for your first PR!
:bug: Bug Fix
babel-traverse
#16033 Only evaluate own String/Number/Math methods (@nicolo-ribaudo)
babel-preset-typescript
#16022 Rewrite .tsx extension when using rewriteImportExtensions (@jimmydief)
babel-helpers
#16017 Fix: fallback to typeof when toString is applied to incompatible object (@JLHwung)
babel-helpers, babel-plugin-transform-modules-commonjs, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
#16025 Avoid override mistake in namespace imports (@nicolo-ribaudo)
Committers: 5
Babel Bot (@babel-bot)
Huáng Jùnliàng (@JLHwung)
James Diefenderfer (@jimmydief)
Nicolò Ribaudo (@nicolo-ribaudo)
@liuxingbaoyu
v7.23.1 (2023-09-25)
Re-publishing @babel/helpers due to a publishing error in 7.23.0.
v7.23.0 (2023-09-25)
Thanks @lorenzoferre and @RajShukla1 for your first PRs!
:rocket: New Feature
babel-plugin-proposal-import-wasm-source, babel-plugin-syntax-import-source, babel-plugin-transform-dynamic-import
#15870 Support transforming import source for wasm (@nicolo-ribaudo)
babel-helper-module-transforms, babel-helpers, babel-plugin-proposal-import-defer, babel-plugin-syntax-import-defer, babel-plugin-transform-modules-commonjs, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime, babel-standalone
#15878 Implement import defer proposal transform support (@nicolo-ribaudo)
babel-generator, babel-parser, babel-types
#15845 Implement import defer parsing support (@nicolo-ribaudo)
#15829 Add parsing support for the "source phase imports" proposal (@nicolo-ribaudo)
babel-generator, babel-helper-module-transforms, babel-parser, babel-plugin-transform-dynamic-import, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-traverse, babel-types
#15682 Add createImportExpressions parser option (@JLHwung)
babel-standalone
#15671 Pass through nonce to the transformed script element (@JLHwung)
babel-helper-function-name, babel-helper-member-expression-to-functions, babel-helpers, babel-parser, babel-plugin-proposal-destructuring-private, babel-plugin-proposal-optional-chaining-assign, babel-plugin-syntax-optional-chaining-assign, babel-plugin-transform-destructuring, babel-plugin-transform-optional-chaining, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime, babel-standalone, babel-types
#15751 Add support for optional chain in assignments (@nicolo-ribaudo)
babel-helpers, babel-plugin-proposal-decorators
#15895 Implement the "decorator metadata" proposal (@nicolo-ribaudo)
babel-traverse, babel-types
#15893 Add t.buildUndefinedNode (@liuxingbaoyu)
babel-preset-typescript

... (truncated)

Changelog

Sourced from @babel/traverse's changelog.

v7.23.2 (2023-10-11)
:bug: Bug Fix
babel-traverse
#16033 Only evaluate own String/Number/Math methods (@nicolo-ribaudo)
babel-preset-typescript
#16022 Rewrite .tsx extension when using rewriteImportExtensions (@jimmydief)
babel-helpers
#16017 Fix: fallback to typeof when toString is applied to incompatible object (@JLHwung)
babel-helpers, babel-plugin-transform-modules-commonjs, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
#16025 Avoid override mistake in namespace imports (@nicolo-ribaudo)
v7.23.0 (2023-09-25)
:rocket: New Feature
babel-plugin-proposal-import-wasm-source, babel-plugin-syntax-import-source, babel-plugin-transform-dynamic-import
#15870 Support transforming import source for wasm (@nicolo-ribaudo)
babel-helper-module-transforms, babel-helpers, babel-plugin-proposal-import-defer, babel-plugin-syntax-import-defer, babel-plugin-transform-modules-commonjs, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime, babel-standalone
#15878 Implement import defer proposal transform support (@nicolo-ribaudo)
babel-generator, babel-parser, babel-types
#15845 Implement import defer parsing support (@nicolo-ribaudo)
#15829 Add parsing support for the "source phase imports" proposal (@nicolo-ribaudo)
babel-generator, babel-helper-module-transforms, babel-parser, babel-plugin-transform-dynamic-import, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-traverse, babel-types
#15682 Add createImportExpressions parser option (@JLHwung)
babel-standalone
#15671 Pass through nonce to the transformed script element (@JLHwung)
babel-helper-function-name, babel-helper-member-expression-to-functions, babel-helpers, babel-parser, babel-plugin-proposal-destructuring-private, babel-plugin-proposal-optional-chaining-assign, babel-plugin-syntax-optional-chaining-assign, babel-plugin-transform-destructuring, babel-plugin-transform-optional-chaining, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime, babel-standalone, babel-types
#15751 Add support for optional chain in assignments (@nicolo-ribaudo)
babel-helpers, babel-plugin-proposal-decorators
#15895 Implement the "decorator metadata" proposal (@nicolo-ribaudo)
babel-traverse, babel-types
#15893 Add t.buildUndefinedNode (@liuxingbaoyu)
babel-preset-typescript
#15913 Add rewriteImportExtensions option to TS preset (@nicolo-ribaudo)
babel-parser
#15896 Allow TS tuples to have both labeled and unlabeled elements (@yukukotani)
:bug: Bug Fix
babel-plugin-transform-block-scoping
#15962 fix: transform-block-scoping captures the variables of the method in the loop (@liuxingbaoyu)
:nail_care: Polish
babel-traverse
#15797 Expand evaluation of global built-ins in @babel/traverse (@lorenzoferre)
babel-plugin-proposal-explicit-resource-management
#15985 Improve source maps for blocks with using declarations (@nicolo-ribaudo)
:microscope: Output optimization
babel-core, babel-helper-module-transforms, babel-plugin-transform-async-to-generator, babel-plugin-transform-classes, babel-plugin-transform-dynamic-import, babel-plugin-transform-function-name, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-umd, babel-plugin-transform-parameters, babel-plugin-transform-react-constant-elements, babel-plugin-transform-react-inline-elements, babel-plugin-transform-runtime, babel-plugin-transform-typescript, babel-preset-env
#15984 Inline exports.XXX = update in simple variable declarations (@nicolo-ribaudo)
v7.22.20 (2023-09-16)

... (truncated)

Commits

b4b9942 v7.23.2
b13376b Only evaluate own String/Number/Math methods (#16033)
ca58ec1 v7.23.0
0f333da Add createImportExpressions parser option (#15682)
3744545 Fix linting
c7e6806 Add t.buildUndefinedNode (#15893)
38ee8b4 Expand evaluation of global built-ins in @babel/traverse (#15797)
9f3dfd9 v7.22.20
3ed28b2 Fully support || and && in pluginToggleBooleanFlag (#15961)
77b0d73 v7.22.19
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London 10 - Paulina Wywrot - Unit Testing - JS3 - Week 4 🔗

Learners, PR Template

Self checklist

I have committed my files one by one, on purpose, and for a reason
I have titled my PR with COHORT_NAME | FIRST_NAME LAST_NAME | REPO_NAME | WEEK
I have tested my changes
My changes follow the style guide
My changes meet the requirements of this task

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London 10 - Paulina Wywrot - Using Fetch - JS3 - Week 2 🔗

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Self checklist

I have committed my files one by one, on purpose, and for a reason
I have titled my PR with COHORT_NAME | FIRST_NAME LAST_NAME | REPO_NAME | WEEK
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My changes follow the style guide
My changes meet the requirements of this task

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London 10 - Paulina Wywrot - Programmer-Humour - JS3 - Week 3 🔗

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I have committed my files one by one, on purpose, and for a reason
I have titled my PR with COHORT_NAME | FIRST_NAME LAST_NAME | REPO_NAME | WEEK
I have tested my changes
My changes follow the style guide
My changes meet the requirements of this task

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London_10 | Andrius Isin | using-fetch | JS3 | Week 3 🔗

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Self checklist

I have committed my files one by one, on purpose, and for a reason
I have titled my PR with COHORT_NAME | FIRST_NAME LAST_NAME | REPO_NAME | WEEK
I have tested my changes
My changes follow the style guide
My changes meet the requirements of this task

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See more pull requests

Every Saturday at CYF we cook and eat together. We share our food and our stories. We learn about each other and the world. We build community.

This is everyone’s responsibility, so help with what is needed to make this happen, for example, organising the food, setting up the table, washing up, tidying up, etc. You can do something different every week. You don’t need to be constantly responsible for the same task.

Components are Functions

Today we’re going to think some more about components. We’re going to build a page using a design system and we’re going to collaborate on a sub branch, feature branch workflow. We’re going to identify the difference between HTML and the DOM using Devtools. And we’re going to create new DOM nodes using JavaScript functions. Oh my goodness, it’s so many things! That’s why it’s best to do this workshop after you’ve done:

And in particular, these workshops:

If you missed these workshops in your cohort, it’s a good idea to try to do them in the week (online) first. Record your session for people that can’t attend. Everyone should try to do the workshops first, either in groups or solo if necessary.

The overall mission is to compose “components” / groupings of HTML elements to build a page in together.html.

But this time, we’re going to use JavaScript functions to build our components.

Learning Objectives

🎄 Work on a complex sub-branch workflow
🛳️ Import a function from a module
🪄 Create a component on a web page
📖 Write a function to build a component from a documented pattern
👪 Collaborate to build a page

Set up your working branch 15m

Set up your working branch

Everyone should do this so everyone is set up correctly.

You will be working on a special branch called FOR-USE-IN-CLASS.
First, clone the workshops repository
Checkout git switch FOR-USE-IN-CLASS
Your cohort has a named sub branch. Everyone, check that out next with git switch --create COHORT (eg NW6). This is your working branch.

Check you are in the right place with GitLens!

Visualise this Git workflow

gitGraph
    commit "main"
    branch FOR-USE-IN-CLASS
    checkout FOR-USE-IN-CLASS
    branch NW6
    checkout NW6
    branch feature/header
    commit
    commit
    checkout NW6
    branch feature/footer
    commit
    commit
    commit
    checkout NW6
    branch feature/card
    commit
    commit
    commit
    checkout NW6
    branch feature/menu
    commit
    commit
    commit
    checkout NW6
    merge feature/header
    merge feature/footer
    merge feature/card
    merge feature/menu

Your working branch is your cohort name

Your COHORT branch is your cohort name. It might be NW6, WM5, GL7… You’ll be making branches starting from your COHORT branch and NOT starting from main.

Get set up to work in teams

Next, divide the class into four teams: header, footer, card, menu. Use the team generator to help you do this.

Set a whole class timer for 10 minutes.

Set up your branch 10m

Each team, choose a driver

Driver, ask everyone in your team to confirm you are in the right working branch.
Driver, from this branch, create and checkout a new branch for your team named like this: feature/cohort-component, where cohort is your cohort name and component is the component you’re building, for example: feature/nw6-header

git switch --create feature/cohort-component

Now you’re all set up to make changes to together.html.

Find your docs

Set a whole class timer for 10 minutes.

Find your docs 10m

Deployed from this repo is a mini design system. This design system has several documented components, and some also have JavaScript files.

Your mission is to find the docs for each component with an associated script file, and read them. Discuss your findings. Here are some things to consider:

Look at the pages on the website with Devtools. Compare the Inspect view with the source code you can see in the files. How are they different? How are HTML and the DOM different?

What is a module? What does this code do <script type="module">import Header from "./docs/header/header.js";</script> ?

Together separately

Set a whole class timer for 30 minutes.

Parallel Development 30m

Now build your component. Elect a new driver.

Find together.html in the /components-2 directory. Your mission is to complete this page.
In the correct portion of the page, make your changes to build your feature on together.html.
Driver, commit your changes to your feature branch.
Open a pull request from your branch to the COHORT branch, with your changes. Ask for help!
Remember, docs will help you too.
Do the simplest thing that could possibly work to begin with. You can always update your PR with more changes.

Review and merge

Now we’re going to review each other’s work and merge to our cohort branch.

Your COHORT branch is your cohort name. You’re working in your COHORT branch and not in main. Open your pull request to your COHORT branch.

Your working branch is your cohort name

Don’t open PRs to main. If you do open a PR to main and it is merged then it would break the exercise for other trainees.

Visualise this Git workflow

gitGraph
    commit id: "start"
    branch FOR-USE-IN-CLASS
    branch COHORT
    branch feature/component
    commit id: "import component function"
    commit id: "import data"
    commit id: "lighthouse revisions"
    checkout COHORT
    merge feature/component

Set a whole class timer for 20 minutes.

Review 20m

Go to the pull requests for this repo.
Either individually or as a group, review each other’s PRs.
Once you’re all happy with the PR, merge it.
Did it work? Why/why not? What does “work” mean for this workshop? Discuss.

Acceptance Criteria

We have worked in teams to build a page using JavaScript components and modules
We have used an advanced sub-branch feature branch workflow to collaborate
We have reviewed each team’s PR

Please feel comfortable and welcome to pray at this time if this is part of your religion.

If you are breastfeeding and would like a private space, please let us know.

What are we doing now?

You’re going to use this time to work through coursework. Your cohort will collectively self-organise to work through the coursework together in your own way. Sort yourselves into groups that work for you.

Use this time wisely

You will have study time in almost every class day. Don’t waste it. Use it to:

work through the coursework
ask questions and get unblocked
give and receive code review
work on your portfolio
develop your own projects

🛎️ Code waiting for review 🔗

Below are trainee coursework Pull Requests that need to be reviewed by volunteers.

Bump @babel/traverse from 7.21.4 to 7.23.2 🔗

Bumps @babel/traverse from 7.21.4 to 7.23.2.

Release notes

Sourced from @babel/traverse's releases.

v7.23.2 (2023-10-11)
NOTE: This release also re-publishes @babel/core, even if it does not appear in the linked release commit.
Thanks @jimmydief for your first PR!
:bug: Bug Fix
babel-traverse
#16033 Only evaluate own String/Number/Math methods (@nicolo-ribaudo)
babel-preset-typescript
#16022 Rewrite .tsx extension when using rewriteImportExtensions (@jimmydief)
babel-helpers
#16017 Fix: fallback to typeof when toString is applied to incompatible object (@JLHwung)
babel-helpers, babel-plugin-transform-modules-commonjs, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
#16025 Avoid override mistake in namespace imports (@nicolo-ribaudo)
Committers: 5
Babel Bot (@babel-bot)
Huáng Jùnliàng (@JLHwung)
James Diefenderfer (@jimmydief)
Nicolò Ribaudo (@nicolo-ribaudo)
@liuxingbaoyu
v7.23.1 (2023-09-25)
Re-publishing @babel/helpers due to a publishing error in 7.23.0.
v7.23.0 (2023-09-25)
Thanks @lorenzoferre and @RajShukla1 for your first PRs!
:rocket: New Feature
babel-plugin-proposal-import-wasm-source, babel-plugin-syntax-import-source, babel-plugin-transform-dynamic-import
#15870 Support transforming import source for wasm (@nicolo-ribaudo)
babel-helper-module-transforms, babel-helpers, babel-plugin-proposal-import-defer, babel-plugin-syntax-import-defer, babel-plugin-transform-modules-commonjs, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime, babel-standalone
#15878 Implement import defer proposal transform support (@nicolo-ribaudo)
babel-generator, babel-parser, babel-types
#15845 Implement import defer parsing support (@nicolo-ribaudo)
#15829 Add parsing support for the "source phase imports" proposal (@nicolo-ribaudo)
babel-generator, babel-helper-module-transforms, babel-parser, babel-plugin-transform-dynamic-import, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-traverse, babel-types
#15682 Add createImportExpressions parser option (@JLHwung)
babel-standalone
#15671 Pass through nonce to the transformed script element (@JLHwung)
babel-helper-function-name, babel-helper-member-expression-to-functions, babel-helpers, babel-parser, babel-plugin-proposal-destructuring-private, babel-plugin-proposal-optional-chaining-assign, babel-plugin-syntax-optional-chaining-assign, babel-plugin-transform-destructuring, babel-plugin-transform-optional-chaining, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime, babel-standalone, babel-types
#15751 Add support for optional chain in assignments (@nicolo-ribaudo)
babel-helpers, babel-plugin-proposal-decorators
#15895 Implement the "decorator metadata" proposal (@nicolo-ribaudo)
babel-traverse, babel-types
#15893 Add t.buildUndefinedNode (@liuxingbaoyu)
babel-preset-typescript

... (truncated)

Changelog

Sourced from @babel/traverse's changelog.

v7.23.2 (2023-10-11)
:bug: Bug Fix
babel-traverse
#16033 Only evaluate own String/Number/Math methods (@nicolo-ribaudo)
babel-preset-typescript
#16022 Rewrite .tsx extension when using rewriteImportExtensions (@jimmydief)
babel-helpers
#16017 Fix: fallback to typeof when toString is applied to incompatible object (@JLHwung)
babel-helpers, babel-plugin-transform-modules-commonjs, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
#16025 Avoid override mistake in namespace imports (@nicolo-ribaudo)
v7.23.0 (2023-09-25)
:rocket: New Feature
babel-plugin-proposal-import-wasm-source, babel-plugin-syntax-import-source, babel-plugin-transform-dynamic-import
#15870 Support transforming import source for wasm (@nicolo-ribaudo)
babel-helper-module-transforms, babel-helpers, babel-plugin-proposal-import-defer, babel-plugin-syntax-import-defer, babel-plugin-transform-modules-commonjs, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime, babel-standalone
#15878 Implement import defer proposal transform support (@nicolo-ribaudo)
babel-generator, babel-parser, babel-types
#15845 Implement import defer parsing support (@nicolo-ribaudo)
#15829 Add parsing support for the "source phase imports" proposal (@nicolo-ribaudo)
babel-generator, babel-helper-module-transforms, babel-parser, babel-plugin-transform-dynamic-import, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-traverse, babel-types
#15682 Add createImportExpressions parser option (@JLHwung)
babel-standalone
#15671 Pass through nonce to the transformed script element (@JLHwung)
babel-helper-function-name, babel-helper-member-expression-to-functions, babel-helpers, babel-parser, babel-plugin-proposal-destructuring-private, babel-plugin-proposal-optional-chaining-assign, babel-plugin-syntax-optional-chaining-assign, babel-plugin-transform-destructuring, babel-plugin-transform-optional-chaining, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime, babel-standalone, babel-types
#15751 Add support for optional chain in assignments (@nicolo-ribaudo)
babel-helpers, babel-plugin-proposal-decorators
#15895 Implement the "decorator metadata" proposal (@nicolo-ribaudo)
babel-traverse, babel-types
#15893 Add t.buildUndefinedNode (@liuxingbaoyu)
babel-preset-typescript
#15913 Add rewriteImportExtensions option to TS preset (@nicolo-ribaudo)
babel-parser
#15896 Allow TS tuples to have both labeled and unlabeled elements (@yukukotani)
:bug: Bug Fix
babel-plugin-transform-block-scoping
#15962 fix: transform-block-scoping captures the variables of the method in the loop (@liuxingbaoyu)
:nail_care: Polish
babel-traverse
#15797 Expand evaluation of global built-ins in @babel/traverse (@lorenzoferre)
babel-plugin-proposal-explicit-resource-management
#15985 Improve source maps for blocks with using declarations (@nicolo-ribaudo)
:microscope: Output optimization
babel-core, babel-helper-module-transforms, babel-plugin-transform-async-to-generator, babel-plugin-transform-classes, babel-plugin-transform-dynamic-import, babel-plugin-transform-function-name, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-umd, babel-plugin-transform-parameters, babel-plugin-transform-react-constant-elements, babel-plugin-transform-react-inline-elements, babel-plugin-transform-runtime, babel-plugin-transform-typescript, babel-preset-env
#15984 Inline exports.XXX = update in simple variable declarations (@nicolo-ribaudo)
v7.22.20 (2023-09-16)

... (truncated)

Commits

b4b9942 v7.23.2
b13376b Only evaluate own String/Number/Math methods (#16033)
ca58ec1 v7.23.0
0f333da Add createImportExpressions parser option (#15682)
3744545 Fix linting
c7e6806 Add t.buildUndefinedNode (#15893)
38ee8b4 Expand evaluation of global built-ins in @babel/traverse (#15797)
9f3dfd9 v7.22.20
3ed28b2 Fully support || and && in pluginToggleBooleanFlag (#15961)
77b0d73 v7.22.19
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