JavaScript Certification Exam JSE-40-01 – Preparation (2023) – (Free Course)


What you’ll learn

This course includes:

  • 6 practice tests
  • Full lifetime access
  • Access on mobile


Get a JavaScript certification now!

JSE-40-01 JavaScript Institute: Certified entry-level JavaScript programmer


There are six practice tests with preparation questions from all knowledge areas

to prepare for the JavaScript Institute JSE-40-01 exam.

Each question has an explanation and Try Yourself code

which you can run to better understand the topic.

You can download Try Yourself code for any question.

(The download link is in your welcome message.)

exam process

Introduction to JavaScript and computer programming

understand basic programming concepts such as: interpretation and interpreter, compilation and compiler, client side versus server side programming;

have basic knowledge of setting up and using a simple programming environment (online or local).

gain the skills to run their first client-side JavaScript program (both as an embedded element in an HTML page or directly in the browser console).

Variables, data types, and type conversions

have the knowledge and skills to work with variables, i.e. naming, declaring, initializing, and changing their values;

Understand concepts such as coverage, code blocks, shading, lifting;

know and be able to use the main properties of primitive data types such as boolean, number, bigint, undefined, null;

Get to know the basic properties of the String primitive data type, including string literals – single or double quotes, escape characters, string interpolation, basic properties and methods;

to know the basic properties of complex data types such as arrays and objects (treated as data sets) and to be able to apply them in practice.

Operator and user interaction

know what operators are and how we classify them (by operand type, by number of operands, etc.)

be able to use assignment operators, arithmetic operators, logical operators and comparison operators in practice;

understand how the conditional operator and the typeof, instanceof, and delete operators work;

understand precedents and associative primitive operators and can influence them by grouping in brackets;

can perform basic two-way communication with program users using alert, confirmation, and prompt dialogs.

Control Flow – Conditional execution and loops

can force conditional execution of a group of statements (make decisions and branch flows) with if-else and switch statements;

can force a group of statements to repeat in a loop using for, while and do-while statements, using dependent and independent loop count conditions;

understand and use loop-specific interrupt commands and continue;

can use the for-in operator to iterate over object properties;

to be able to use the for-of statement to iterate over the elements of the array.


can declare and execute functions;

know how to pass arguments to function calls and return your work from them;

understand the concept of local variables and the shadowing effect of similarly named variables in a function;

You know that functions in JS are members of first class, and you can exploit them by declaring functions, using function expressions, and passing functions as arguments to call other functions;

understand the concept of recursion in the context of functions and be able to use it to solve simple programming problems;

have basic knowledge of callback functions and be able to use them asynchronously with setTimeout and setInterval methods;

have a clear understanding of arrow function notation and can alternatively write functions as simple declarations, function expressions, and arrow functions.

Errors, exceptions, debugging and troubleshooting

understand the difference between syntactic, semantic, and logical errors;

Understand the concept of exceptions and distinguish between the main exceptions generated by JS when an error occurs: SyntaxError, ReferenceError, TypeError, RangeError;

have the ability to handle exceptions with try-catch-finally statements;

can generate their own exceptions with a throw statement;

Have the skills to use the debugger for basic analysis of their own code, including: tracing, viewing and changing variables, and measuring code execution time.

Who is this course for:
Anyone preparing for the JSE-40-01 JavaScript Institute JavaScript Certification.
Anyone preparing for a JavaScript job interview.
Anyone wanting to learn more about JavaScript through his questions and explanations.
Anyone looking to test their JavaScript knowledge.
Any JavaScript programmer looking to improve their JavaScript skills.
Every programmer who wants to switch to JavaScript.

How to Get this course FREE?

Note: The udemy Courses Will be free for a Maximum of 1000 Learners can use the promo code AND Get this course 100% Free. After that, you will get this course at a discounted price. (Still, It’s a good deal for you to get this course at a discounted price).

External links may contain affiliate links, meaning we get a commission if you decide to make a purchase. Read our disclosure.


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