JavaScript Fundamentals

2 days / 14h

Course overview

This training covers the fundamentals of the JavaScript language. These basics are mandatory for the development of backend or frontend applications in JavaScript.

JavaScript is a lightweight, interpreted, object-oriented language with first order functions. It is better known as a scripting language for web pages, but is used in many environments other than browsers, for instance with Node.js. It is a dynamic, multi-paradigm, prototype-based scripting language that supports object-oriented, imperative, and functional programming styles.

  • Identify JavaScript and ECMAScript within the full-stack technologies’ ecosystem
  • Set up your JavaScript development environment
  • Master the lexicon, syntax and peculiarities of JavaScript
  • Write, execute, debug and test a JavaScript program in frontend and backend environments
  • Take advantage of advanced JavaScript functions
  • Master Object Oriented Programming in JavaScript
  • Use the main standard built-in objects

Target audience

Developers, integrators, software architects, technical project managers

  • Basic knowledge of software development
  • Basic knowledge of HTML

Course Outline

1 Introduction to JavaScript

  • History of web technologies
  • JavaScript vs ECMAScript
  • Case studies: front end, back end, full-stack, embedded,…
  • Modern JavaScript development environment
  • JavaScript runtime environments, memory management, event loops


  • Installation of a modern development environment
  • Quick wins: a first JavaScript program

2 Fundamentals of JavaScript

  • Source code and usual conventions
  • Language types: Undefined, Null, Boolean, String, Symbol, Number, and Object
  • Grammar, expressions, identifiers, operators
  • Declaration of variables
  • Literal values
  • Basic instructions: conditional statements, iterations, stop, continue


  • Writing simple JavaScript programs in frontend or backend environments

3 Functions
Definition of functions
Function expressions, immediately invoked, internal, closures
The keyword ‘this’
Arrow Functions
Functional programming
Creation and implementation of functions, procedural and functional approaches

4 Objects and classes

  • Object-oriented approach in JavaScript and prototypes
  • Cross properties of objects
  • Property attributes and descriptors
  • Constructor functions
  • Class definitions


  • Implementation of different methods of defining and creating objects

5 Standard built-in objects

  • The Global object
  • Numbers
  • Dates
  • Text management
  • Tables and indexed collections
  • Other collections: Map and Set
  • Other fundamental objects: Object, Function, Boolean, Symbol, Error


  • Use of standard built-in objects

6 Error handling

  • Console object
  • Error object and throw, try/catch instructions
  • Debug your JavaScript code


  • Error handling within a JavaScript application
  • Implementation of a debugger in front and back environment
  1. Special features of JavaScript
    • Scopes
    • Hoisting
    • Strict mode
    • Other notable features


  • Anticipating the peculiarities of JavaScript

Our training sessions

Place of training :
08/07/24 Distance Register
23/09/24 Distance Register
18/11/24 Distance Register
16/12/24 Distance Register

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Inter : 1000 € HT / user

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