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Training Babel 2026 - Modern JS Transpiler for All Browsers

Ref: XNS113
10 people max.
From $4,620 HT / per person
On-site on request · +$540 with certification exam
4 days
Remote

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Equans
EDF
Ubisoft
Microsoft
Aptar
ArcelorMittal
Equans
EDF
Ubisoft
Microsoft
Aptar
ArcelorMittal
Equans
EDF
Ubisoft
Microsoft
Aptar
ArcelorMittal
Equans
EDF
Ubisoft
Microsoft
Aptar
ArcelorMittal
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Learning objectives

  • Master the installation and configuration of Babel 2026 for professional environments
  • Develop skills in transpiling ES2026 code to legacy browsers
  • Implement Babel presets and plugins to optimize enterprise builds
  • Design multi-browser compatible development workflows for certification
  • Optimize JavaScript performance with Babel 2026 in professional contexts
  • Integrate Babel into React or Node.js projects for increased productivity
A child walking to school with a backpack
Our social commitment

A school kit donated to a child for every training

To fight inequalities in access to education, Learni donates a complete school kit to a child in need for every training booked. You build your skills, a child heads back to school.

  • Backpack, notebooks and essential supplies
  • Distributed through our partner charities
  • Included, at no extra cost to you

The Learni story

Founded by engineers and learning experts, Learni's mission is to make high-impact tech training accessible to teams everywhere. We work remotely with organizations across the US and Canada, in your time zone, to help teams upskill fast.

Don't let this gap widen

Why this program matters

  • Without mastery of Babel 2026, 45% of web traffic remains incompatible with ES2026 features, generating 25% higher bounce rates on e-commerce sites.

  • Teams lose an average of 30 hours per sprint debugging legacy browser errors, costing 15k€ annually per developer.

  • In 2026, 68% of JS job postings require modern transpilation, sidelining untrained profiles and stalling promotions.

  • Every unoptimized project exposes the company to 20% performance losses, widening the competitive gap against agile rivals.

Imed BEN AMOR
Imed BEN AMOR

Learni trainer · Development expert

73%productivity gap
×3cost of inaction

Program

Module 1Babel 2026 Fundamentals: Installation and First Presets (CLI, npm, babel.config.json configuration)

Immersive discovery of Babel 2026 through quick installation with npm and yarn, initial configuration of the babel.config.json file targeting ES2026, first transpilation exercises of modern code to ES5, tests on legacy browsers like IE11, creation of a simple ongoing project with resolution of common errors, personalized feedback from the trainer to anchor professional skills from the first day.

Module 2Babel 2026 Presets: Advanced ESNext Transpilation (preset-env, syntax transformations)

Practical dive into @babel/preset-env presets for Babel 2026, transformation of arrows, classes, and ES2026 modules, exercises on smart polyfills via core-js, integration into a bundler like Webpack, debugging of transpiled bundles, real enterprise cases with legacy code migration, production of an optimized deliverable ready for deployment, immediately valuing your certifying skills.

Module 3Babel 2026 Plugins: Customization and Optimizations (transform plugins, specific targets)

Mastery of custom Babel 2026 plugins for experimental features, configuration of browserlist targets for precise compatibility, exercises on async/await and optional chaining transformations, resolution of plugin conflicts in complex projects, integration with TypeScript for enterprises, unit tests on transpiled code with Jest, development of an automated CI/CD workflow, demonstrating the business value of your new expertise.

Module 4Babel 2026 Integration: Real Projects and Deployment (React, Node.js, production)

Concrete application of Babel 2026 in popular frameworks like React and Next.js, advanced configuration for production builds, tree-shaking and minification optimization, deployment simulations on Vercel and Netlify, performance audit before/after transpilation, finalization of the ongoing project with multiple-choice quiz and defense, delivery of certifying materials, ensuring immediate skill advancement to boost your professional career.

Evaluation method

  • Multiple-choice quiz to validate acquired knowledge at the end of the training
  • Continuous evaluation through practical exercises
  • Defense of the ongoing project in front of the trainer

Learning method

  • Courses led by an active expert trainer
  • Practical exercises on real enterprise cases
  • Progressive ongoing project throughout the training
  • Complete course materials provided to each participant

Methods, materials and delivery

The Training Babel 2026 - Modern JS Transpiler for All Browsers program is delivered onsite or remote (blended-learning, virtual classroom, remote presence). At Learni, an industry-certified training organization, every program is built to maximize skills acquisition regardless of the chosen format.

The trainer alternates between demonstrative, interrogative and active methods (through hands-on labs and/or scenarios). This pedagogical approach guarantees concrete learning that's immediately applicable at work.

Equipment required

For the smooth delivery of the Training Babel 2026 - Modern JS Transpiler for All Browsers program, the following equipment is required:

  • Mac or PC computers, high-speed fiber internet, whiteboard or flipchart, projector or interactive touch screen (for remote sessions)
  • Training environments installed on workstations or accessible online
  • Course materials, hands-on exercises and complementary resources
  • Post-training access to materials and educational resources

For intra-company training on a site outside Learni, the client commits to providing all required teaching materials (computers, internet, etc.) for the smooth delivery of the program in line with the prerequisites in the communicated program.

* contact us for remote delivery feasibility** ratio varies depending on the program

Skills assessment methods

Assessment of skills acquired during the Training Babel 2026 - Modern JS Transpiler for All Browsers program is performed through:

  • During training: case studies, hands-on labs and professional scenarios
  • End of training: self-assessment questionnaire and skills evaluation by the trainer
  • After training: completion certificate detailing acquired skills

Program accessibility

Learni is committed to making its programs accessible. All our programs are accessible to people with disabilities. Our teams are available to adapt the pedagogical methods to your specific needs. Please contact us for any adjustment request.

Enrollment terms and lead times

Registration is possible up to 48 business hours before the start of training. All our programs are built for corporate L&D budgets and delivered onsite or remotely.

Our method

Training quality, guaranteed at every step

Before, during, after: we frame the brief, introduce the trainer, tailor the content and measure impact. You stay in control from kickoff to wrap-up.

Step 1

Rigorous trainer selection

Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.

  • Triple validation: technical, pedagogical, sectoral.
  • Minimum rating 4.8/5 over the last 12 sessions.
Step 2

You meet the trainer beforehand

30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.

  • Live briefing on goals and team context.
  • Veto right — we swap the trainer for free if needed.
Step 3

Content tailored to your context

No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.

  • Hands-on cases drawn from your stack and projects.
  • Program co-written then validated by your team.
Step 4

Continuous quality follow-up

Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.

  • NPS, knowledge quizzes and skills self-assessment.
  • Satisfaction guarantee: fully satisfied or free rework.

A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.

FAQ

Frequently asked questions

How much does the Training Babel 2026 - Modern JS Transpiler for All Browsers training cost?+
The price is $4,620 (USD) per participant. A detailed quote is sent within one business day.
How long is the Training Babel 2026 - Modern JS Transpiler for All Browsers training?+
The training lasts 4 journées, available live online (US time zones) or on-site at your offices.
How is this training paid for?+
Most US teams pay directly through their company (L&D or training budget). We invoice in US dollars and accept bank transfer (ACH/wire) or card, with volume pricing for teams. A purchase order is welcome.
Are there any prerequisites?+
JavaScript ES6 basics, Node.js fundamentals, and npm package management
Is a certificate delivered at the end?+
Yes. A Learni completion certificate is issued, along with the individual evaluation report.
Does Learni provide the equipment?+
No. A computer and stable internet connection are required for the participant. Learni provides the educational platform, the trainer and all course materials.
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