Conteúdo do Curso

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 3/3

<code class="go3679463865">const</code> Does Not Allow Hoisting

As discussed in the previous chapter, let does not allow hoisting i.e. we cannot use a variable before the declaration. Just like let we can not use hoisting with the const.it is only supported with var.


              123
            
MYPLANET = 'earth';
console.log(MYPLANET);
const MYPLANET;

Tarefa

Rearrange the following code to display the value of SALARY on the console.

Tarefa

Rearrange the following code to display the value of SALARY on the console.

Summary:

We can neither change the values of the const variables through reassignment nor we can redeclare them.
Value should be assigned to const variables at the time of declaration.

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Seção 3. Capítulo 11

Constant 3/3

<code class="go3679463865">const</code> Does Not Allow Hoisting


              123
            
MYPLANET = 'earth';
console.log(MYPLANET);
const MYPLANET;

Tarefa

Rearrange the following code to display the value of SALARY on the console.

Tarefa

Rearrange the following code to display the value of SALARY on the console.

Summary:

We can neither change the values of the const variables through reassignment nor we can redeclare them.
Value should be assigned to const variables at the time of declaration.

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

Tudo estava claro?

Seção 3. Capítulo 11

Constant 3/3

<code class="go3679463865">const</code> Does Not Allow Hoisting


              123
            
MYPLANET = 'earth';
console.log(MYPLANET);
const MYPLANET;

Tarefa

Rearrange the following code to display the value of SALARY on the console.

Tarefa

Rearrange the following code to display the value of SALARY on the console.

Summary:

We can neither change the values of the const variables through reassignment nor we can redeclare them.
Value should be assigned to const variables at the time of declaration.

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

Tudo estava claro?

<code class="go3679463865">const</code> Does Not Allow Hoisting


              123
            
MYPLANET = 'earth';
console.log(MYPLANET);
const MYPLANET;

Tarefa

Rearrange the following code to display the value of SALARY on the console.

Summary:

We can neither change the values of the const variables through reassignment nor we can redeclare them.
Value should be assigned to const variables at the time of declaration.

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

Seção 3. Capítulo 11

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