Training TypeScript: Mastering the Fundamentals for JavaScript Developers

$3,465

  • 3 days
  • Onsite
  • 12 people max.
Ref: JMO837
12 people max.
$3,465
In-company rate: from $6,290 for the whole team
On-site and certification exam on quote
3 days
Onsite

Don't let this gap widen

Why this program matters

  • Without mastery of TypeScript fundamentals, your JavaScript code stays chaotic and multiplies invisible type errors that pollute production.

  • 68% of critical bugs in JS web applications stem from dynamic type issues, according to State of JS reports, resulting in downtimes of 12 heures on average per incident.

  • A team of 5 developers thus loses 25 000 € per month to debugging and delays, threatening company competitiveness and exposing the business to costly security breaches.

  • Your career stalls against peers who structure and secure code effectively, while every delayed project erodes stakeholder trust.

Célian Lebacle, Learni trainer · Web & mobile expert
Célian Lebacle

Learni trainer · Web & mobile expert

73%productivity gap
×3cost of inaction
Flag of the United StatesBuilt for US teams
Payment by wire transferEnhanced confidentialityPerfect for companies with 50 to 500 employeesScheduling to fit any time zone

Trusted by — schools, companies and industrial groups

40,844 programs · 25 countries

  • Aptar
  • ArcelorMittal
  • Equans
  • EDF
  • Ubisoft
  • Microsoft

Every program built with a dedicated engineer

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Companies: Aptar, ArcelorMittal, Equans, EDF, Ubisoft and Microsoft.

TypeScript training objectives

  • Understand static typing and its advantages
  • Effectively structure JavaScript projects with TypeScript
  • Use TypeScript interfaces, classes, and generics
  • Integrate TypeScript into an existing application
  • Configure TypeScript workflow tools and compilation
  • Handle advanced scenarios with the type system

TypeScript curriculum: 3 modules over 3 days

Module 1 : Introduction and Setup of TypeScript

Presentation of TypeScript and its benefits. Installation and environment configuration. Basic types (string, number, boolean, array, enum, tuple, any, unknown, void, never). Conversion and manipulation of existing code. Hands-on practice with first simple scripts. Introduction to interfaces and their utility for code structuring. Getting-started exercises.

Module 2 : Deep Dive into Typing and Advanced Structures

Detailed use of interfaces and classes. Inheritance and composition. Literal types, unions, intersections. Generics: principles and use cases in functions and classes. Modules and namespaces. Advanced typing and inference. Typing functions and complex signatures. Managing custom types (type aliases) and conditional typing.

Module 3 : Development, Integration, and Optimization with TypeScript

Tool management (tsc, tsconfig, tslint/ESLint). Integration into existing JavaScript projects: progressive migration, best practices, and pitfalls to avoid. Use with front-end frameworks (React, Angular, Vue). Type declarations for third-party libraries (@types). Compilation, debugging, and deployment. Version management and TypeScript evolutions. Practical exercises: migration of a JS module to TypeScript and creation of a complete TypeScript project. Review of key takeaways and preparation for autonomy on professional projects.

How TypeScript skills are assessed

  • Quiz at the end of each day
  • Red thread project: migration then complete creation of a mini-project in TypeScript
  • Group correction and individualized feedback

How the TypeScript course is taught

  • Interactive courses with live demonstrations
  • Supervised practical work
  • Detailed course materials and supplementary resources
  • Access to a repository of projects and examples

TypeScript training: access and practical arrangements

The Training TypeScript: Mastering the Fundamentals for JavaScript Developers 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 TypeScript: Mastering the Fundamentals for JavaScript Developers 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 TypeScript: Mastering the Fundamentals for JavaScript Developers 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.

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.

Our method

How Learni guarantees the quality of your TypeScript training

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.

A child walking to school with a backpack
Our social commitment

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.

  • Backpack, notebooks and essential supplies
  • Distributed through our partner charities
  • Included, at no extra cost to you
Enroll and offer a kit
FAQ

TypeScript: frequently asked questions

What can participants do after TypeScript: Mastering the Fundamentals for JavaScript Developers training?+
They can understand static typing and its advantages, effectively structure JavaScript projects with TypeScript and use TypeScript interfaces, classes, and generics. Those are the stated objectives of the TypeScript: Mastering the Fundamentals for JavaScript Developers program at Intermediate level, checked by the end-of-session assessment.
What does the TypeScript: Mastering the Fundamentals for JavaScript Developers program cover, day by day?+
Day 1: Introduction and Setup of TypeScript. Day 2: Deep Dive into Typing and Advanced Structures. Day 3: Development, Integration, and Optimization with TypeScript. The TypeScript: Mastering the Fundamentals for JavaScript Developers program runs over 3 days, delivered on site.
How is TypeScript: Mastering the Fundamentals for JavaScript Developers training assessed?+
Assessment relies on quiz at the end of each day, red thread project: migration then complete creation of a mini-project in TypeScript and group correction and individualized feedback. Learni issues a completion certificate together with the individual assessment report at the end of the TypeScript: Mastering the Fundamentals for JavaScript Developers program, which an L&D team can file as evidence.
How much does TypeScript: Mastering the Fundamentals for JavaScript Developers training cost per participant?+
TypeScript: Mastering the Fundamentals for JavaScript Developers training costs $3,465 per participant. For an in-company team, the flat rate starts at $6,290 for the whole group, up to 8 people. The detailed quote, sent within one business day, adjusts the amount to the format and how far the syllabus is tailored to your team.
How long does TypeScript: Mastering the Fundamentals for JavaScript Developers training take?+
3 days, available live online (US time zones) or on-site at your offices. Half-day tracks spread over several weeks are possible so the team stays operational.
Who pays for TypeScript: Mastering the Fundamentals for JavaScript Developers training?+
Most US teams pay directly through their company L&D or training budget. Learni invoices in US dollars and accepts bank transfer (ACH/wire) or card, with volume pricing for teams. A purchase order is welcome.
What do participants need to know before TypeScript: Mastering the Fundamentals for JavaScript Developers training?+
Mastery of fundamental JavaScript concepts (ES6).
Is a certificate issued after TypeScript: Mastering the Fundamentals for JavaScript Developers training?+
Yes. A Learni completion certificate is issued, along with the individual evaluation report. Learni is a certified training provider and prepares for third-party certifications, but does not award them itself.
Does Learni provide the equipment for TypeScript: Mastering the Fundamentals for JavaScript Developers training?+
No. A computer and a stable internet connection are required for each participant. Learni provides the learning platform, the trainer and all course materials.
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