JavaScript fundamentals

Included in the course

What you'll learn

• How to build programs using basic language constructs (conditions, loops, functions, and others)
• How to create programs consisting of several modules
• How to correctly analyze errors in the code and use print statement debugging when searching for them

Description

This course covers the fundamentals of the JavaScript language, and all the necessary general programming concepts, such as dealing with errors, debugging, and importing modules

Course program

• 1

  Introduction

  Course overview

  theory
• 2

  Hello, World!

  Writing your first program.

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  quiz

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• 3

  Statements

  Learn the nuts and bolts of building JavaScript programs.

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• 4

  Arithmetic operations

  Using arithmetic operations in JavaScript.

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• 5

  Formatting errors (syntax and linter)

  We'll explore different types of errors and how to solve them.

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• 6

  Strings

  Learn how to work with strings.

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• 7

  Variables

  Learn how to store data and reuse it.

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• 8

  Defining with expressions

  Learn how to simplify code using variables.

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• 9

  Naming

  Learn about how best to name variables.

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• 10

  Interpolation

  We'll look at another way to handle strings in JavaScript.

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• 11

  Getting characters from a string

  Learn how to extract chars from string.

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• 12

  Data types

  What happens when you try multiplying a number by a string? Learn about data types in this lesson.

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• 13

  Immutability and primitive data types

  Find out if JavaScript can transform strings or numbers.

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• 14

  Functions and calls

  Learn how to use ready-made functions.

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• 15

  Function signature

  Understand how a function takes and returns values.

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• 16

  Function calls as an expression

  Learn how to use the function output.

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• 17

  Functions with variadic parameters

  Get to know some advanced function features.

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• 18

  Determinacy

  Investigate some properties of functions and learn more about how they work.

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• 19

  Standard library

  Learn about the standard library.

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• 20

  Properties and methods

  Learn how to use JavaScript's built-in data properties.

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• 21

  Chaining methods

  Learn how to chain methods.

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• 22

  Defining functions

  Learn how to create functions.

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• 23

  Returning values

  Learn how to output results of functions.

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• 24

  Function parameters

  Learn how to pass data to a function.

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• 25

  Optional function parameters

  Learn how to set default values.

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• 26

  Simplified function syntax

  Learn how to write concise code.

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• 27

  Logic

  Learn what a logical type is and how to use logical operations.

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• 28

  Logical operators

  Learn how to build composite conditions.

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• 29

  Results of logical operations

  Dive deeper into logic.

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• 30

  Conditionals

  Learn how to customize your program's behavior depending on different conditions.

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• 31

  Ternary operator

  Learn how to write concise code for conditions.

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• 32

  Switch

  Discover a special conditional statement for multiple options.

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• 33

  while loop

  Learn how to write programs to perform repetitive actions.

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• 34

  Data aggregation

  Get acquainted with a certain type of task that loops are especially useful for.

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• 35

  Traversing a string in a loop

  Learn how to control the behavior of a program using a loop.

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• 36

  Conditions inside loops

  Learn how to control the behavior of a program using a loop.

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• 37

  Increment and decrement

  Learn about the unary operations.

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• 38

  for loop

  Learn yet another loop statement in JavaScript.

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• 39

  Modules

  Learn about a way to divide programs into components that can be reused.

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• 40

  Additional resources

  Some materials the Hexlet team have picked up. This will give you a more in-depth understanding of the topic

Challenges

We recommend working on these challenges after completing the course. They'll help you obtain more experience in programming and strengthen your new skills.