Introduction to JavaScript (staging)

Introduction to JavaScript (staging)

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1. Introduction

Writing our first code on JavaScript.

Writing our first code

Output Using Variables 1/2

Output Using Variables 2/2

2. JavaScript syntax

The syntax of the JavaScript programming language is the set of rules that defines how a JavaScript program will be written and interpreted (by both the runtime system and by human readers).

JavaScript Syntax

JavaScript Variables

JavaScript Operators

Identifiers in JavaScript

Naming Identifiers

Reserved keywords in JavaScript

Naming Convention in JavaScript. Case Styles

Variables Naming Convention

Boolean Naming Convention

Constant Naming Convention

Function & Classes Naming Convention

Multiline Strings

Multiline Strings. Concatenating

Commenting in JavaScript

Commenting in JavaScript. Multi-line Comments

3. Data Types and Variables

JavaScript is dynamically typed (also called loosely typed) scripting language. That is, in javascript variables can receive different data types over time. Datatypes are basically typed of data that can be used and manipulated in a program.

Conteúdo do Curso

Introduction to JavaScript (staging)

Introduction to JavaScript (staging)

1. Introduction

Writing our first code Output Using Variables 1/2 Output Using Variables 2/2

2. JavaScript syntax

JavaScript Syntax JavaScript Variables JavaScript Operators Identifiers in JavaScript Naming Identifiers Reserved keywords in JavaScript Naming Convention in JavaScript. Case Styles Variables Naming Convention Boolean Naming Convention Constant Naming Convention Function & Classes Naming Convention Multiline Strings Multiline Strings. Concatenating Commenting in JavaScript Commenting in JavaScript. Multi-line Comments

Constant Naming Convention

Constant naming convention

Constants are planned to be non-changing variables. It is best to practice to distinguish constants from other variables and the best way to write them is in UPPERCASE (capital letters).


              123456
            
// UPPERCASE
const SECONDS = 60;
const MINUTES = 60;
const HOURS = 24;
const DAY = SECONDS * MINUTES * HOURS;
console.log(DAY);

Tarefa

Store the value of pi in the constant and name it with an uppercase and show it on the console.

Tarefa

Store the value of pi in the constant and name it with an uppercase and show it on the console.

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Seção 2. Capítulo 10

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Constant Naming Convention

Constant naming convention

Constants are planned to be non-changing variables. It is best to practice to distinguish constants from other variables and the best way to write them is in UPPERCASE (capital letters).


              123456
            
// UPPERCASE
const SECONDS = 60;
const MINUTES = 60;
const HOURS = 24;
const DAY = SECONDS * MINUTES * HOURS;
console.log(DAY);

Tarefa

Store the value of pi in the constant and name it with an uppercase and show it on the console.

Tarefa

Store the value of pi in the constant and name it with an uppercase and show it on the console.

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo

Tudo estava claro?

Seção 2. Capítulo 10

toggle bottom row

Constant Naming Convention

Constant naming convention

Constants are planned to be non-changing variables. It is best to practice to distinguish constants from other variables and the best way to write them is in UPPERCASE (capital letters).


              123456
            
// UPPERCASE
const SECONDS = 60;
const MINUTES = 60;
const HOURS = 24;
const DAY = SECONDS * MINUTES * HOURS;
console.log(DAY);

Tarefa

Store the value of pi in the constant and name it with an uppercase and show it on the console.

Tarefa

Store the value of pi in the constant and name it with an uppercase and show it on the console.

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo

Tudo estava claro?

Constant naming convention

Constants are planned to be non-changing variables. It is best to practice to distinguish constants from other variables and the best way to write them is in UPPERCASE (capital letters).


              123456
            
// UPPERCASE
const SECONDS = 60;
const MINUTES = 60;
const HOURS = 24;
const DAY = SECONDS * MINUTES * HOURS;
console.log(DAY);

Tarefa

Store the value of pi in the constant and name it with an uppercase and show it on the console.

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo

Seção 2. Capítulo 10

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo

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