Introduction to JavaScript

Introduction to JavaScript

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1. Basic Concepts

Our first section will introduce you to JavaScript and explore its syntax. This initial step will give you a fundamental understanding of JavaScript's syntax, setting the stage for more in-depth learning in subsequent sections.

About JavaScript

Challenge: Console Output

Challenge: Single-line Comment

Challenge: Multi-line Comment

2. Variables and Data Types

We'll dive into the essential data types that JavaScript operates with. We'll begin by distinguishing between literals and variables and then explore the diverse range of data types used in JavaScript. This knowledge will form a solid foundation for your journey into JavaScript.

Challenge: Defining the Variable

Data Types Overview

Challenge: Array Operations

3. Basic Operations

We're acquainted with the various data types. It's time to roll up our sleeves and learn how to manipulate them. In this third section, we'll explore the operations that can be performed with each data type, equipping you with practical skills to work effectively with JavaScript's data structures.

Mathematical Operations

Operations with Assignment

Increment and Decrement

Challenge: Variable Operations

Comparison Operations

Logical Operations

Challenge: Comparing Variables

String Concatenation

Challenge: Sentence Building

4. Conditional Statements

Delve into the art of controlling the flow of execution in JavaScript. It's a powerful skill that enables us to instruct the interpreter precisely on how to behave under various conditions. You'll gain the ability to orchestrate your code's behavior.

Challenge: Determining Size

5. Loops

Uncover the code optimization through the use of loops. Loops allow us to streamline our code by performing repetitive actions efficiently. We'll delve into JavaScript's different types of loops and discover how to wield their power effectively.

Challenge: Printing Numbers from 5 to 9

Challenge: Tigers

Challenge: Stopping and Skipping

6. Functions

Unlock the potential of functions as essential tools for crafting simple yet powerful programs. You'll master creating and utilizing functions, empowering you to simplify your coding endeavors and enhance your problem-solving skills.

What is a Function?

Challenge: My Name

Conteúdo do Curso

Introduction to JavaScript

Introduction to JavaScript

Challenge: Sum

Task

Implement a function sum that takes three arguments (a, b, and c) and returns their sum.

Next, call this function twice, using the following sets of arguments:

Use 24, 12, and 32 for the first function call and store the result in the variable sum1.
Use 12, 42, and 5 for the second function call and store the result in the variable sum2.

Finally, print the results of both function calls.


              123456789
            
function sum(___, ___, ___) {
  ___ a + b + c;
};

let sum1 = ___(___, ___, ___);
let sum2 = ___(___, ___, ___);

console.log("sum1 =", ___);
console.log("sum2 =", ___);

The output should be:

Use the return keyword inside the function body.
Use the function name to call this function.
Choose values yourself.


              123456789
            
function sum(a, b, c) {
  return a + b + c;
}

let sum1 = sum(24, 12, 32);
let sum2 = sum(12, 42, 5);

console.log("sum1 =", sum1);
console.log("sum2 =", sum2);

Tudo estava claro?

Seção 6. Capítulo 6

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