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.
Describe your need, get a tailored program and a pre-filled quote in 3 min. A 100% free call with an advisor.
Specialist course · Minimum level required
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41,306 programs · 25 countries
Every program built with a dedicated engineer
Companies: Aptar, ArcelorMittal, Equans, EDF, Ubisoft, Microsoft and Atos.
Program
Dive into ES6+ by refactoring legacy code with destructuring, spread operators, and template literals. Complete practical exercises on classes and inheritance. Build a functional import/export module. Test live with Babel to transform your development approach and gain immediate productivity on real refactoring cases.
Deepen asynchronous programming by chaining Promises for multiple API calls. Implement async/await in real scenarios like fetching from remote endpoints. Handle rejections with try/catch. Simulate network latencies through interactive exercises. Produce a robust script for a dynamic dashboard, transforming your apps into smooth, reactive experiences.
Explore closures for secure private modules. Manipulate prototypal inheritance for performant objects. Apply patterns like Observer and Singleton to enterprise cases. Code collaborative exercises in pair programming. Generate testable deliverables with Jest. Unlock JavaScript's hidden potential for elegant architectures.
Optimize with Web Workers for CPU-intensive tasks. Integrate Service Workers for offline-first PWAs. Profile memory via Chrome DevTools on real apps. Reduce memory leaks through targeted exercises. Benchmark before/after with Lighthouse. Deploy measurable gains up to 40% faster, propelling your projects to technical excellence.
Build a fullstack app with Node.js and bundlers like Webpack. Integrate CI/CD via GitHub Actions. Review security and scalability best practices. Present your project in a final pitch. Receive personalized feedback. Leave with a concrete portfolio and certificate to boost your career immediately.
The Training JavaScript Advanced - Master ES6+ and Scalable Apps 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 JavaScript Advanced - Master ES6+ and Scalable Apps program, the following equipment is required:
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.
Skills assessment methods
Assessment of skills acquired during the Training JavaScript Advanced - Master ES6+ and Scalable Apps program is performed through:
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.
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.
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.
Rigorous trainer selection
Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.
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.
Content tailored to your context
No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.
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.
A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.

A school kit donated to a child for every training booked
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.
30 minutes with a learning advisor. No commitment. No sales pitch dressed up as a demo.
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JavaScript & TypeScriptIndustry-certified
JavaScript & TypeScriptIndustry-certified
JavaScript & TypeScriptIndustry-certified
JavaScript & TypeScriptIndustry-certified
Backend & APIsIndustry-certified
Backend & APIsIndustry-certified
Backend & APIsIndustry-certified
Web developmentIndustry-certified
Web developmentIndustry-certified
Web developmentIndustry-certified
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.NET & C#Industry-certified
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