Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.Symbols 3/3 | Data Types and Variables
Introduction to JavaScript (staging)
course content

Conteúdo do Curso

Introduction to JavaScript (staging)

Introduction to JavaScript (staging)

1. Introduction
Writing our first codeOutput Using Variables 1/2Output Using Variables 2/2
2. JavaScript syntax
JavaScript SyntaxJavaScript VariablesJavaScript OperatorsIdentifiers in JavaScriptNaming IdentifiersReserved keywords in JavaScriptNaming Convention in JavaScript. Case StylesVariables Naming ConventionBoolean Naming ConventionConstant Naming ConventionFunction & Classes Naming ConventionMultiline StringsMultiline Strings. ConcatenatingCommenting in JavaScriptCommenting in JavaScript. Multi-line Comments
3. Data Types and Variables
What are Variables?What are Data-types?JavaScript and Type ConversionVar 1/3Var 2/3Var 3/3Let 1/2Let 2/2Constant 1/3Constant 2/3Constant 3/3Number 1/3Number 2/3Number 3/3Boolean 1/4Boolean 2/4Boolean 3/4Boolean 4/4Strings 1/5Strings 2/5Strings 3/5Strings 4/5Strings 5/5BigInt 1/3BigInt 2/3BigInt 3/3Symbols 1/3Symbols 2/3Symbols 3/3NullUndefinedNull vs Undefined

bookSymbols 3/3

Accessing the Description of the Symbol()

We can access the description of the symbol by calling the .description method.


              
12

            
let firstName = Symbol('Michael');
console.log(firstName.description);
copy

Tarefa

Create two symbols personName and personAdress by using Symbol() give them the description of Name and Address and display their descriptions.

Summary

  • Symbol is a primitive data type that is used to create a unique identifier.
  • We use the global Symbol() function to create symbols.
  • We can provide a description to a Symbol() function as an optional argument.
  • The description of the symbol can be accessed through the .description property.

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

Seção 3. Capítulo 29
toggle bottom row

bookSymbols 3/3

Accessing the Description of the Symbol()

We can access the description of the symbol by calling the .description method.


              
12

            
let firstName = Symbol('Michael');
console.log(firstName.description);
copy

Tarefa

Create two symbols personName and personAdress by using Symbol() give them the description of Name and Address and display their descriptions.

Summary

  • Symbol is a primitive data type that is used to create a unique identifier.
  • We use the global Symbol() function to create symbols.
  • We can provide a description to a Symbol() function as an optional argument.
  • The description of the symbol can be accessed through the .description property.

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

Seção 3. Capítulo 29
toggle bottom row

bookSymbols 3/3

Accessing the Description of the Symbol()

We can access the description of the symbol by calling the .description method.


              
12

            
let firstName = Symbol('Michael');
console.log(firstName.description);
copy

Tarefa

Create two symbols personName and personAdress by using Symbol() give them the description of Name and Address and display their descriptions.

Summary

  • Symbol is a primitive data type that is used to create a unique identifier.
  • We use the global Symbol() function to create symbols.
  • We can provide a description to a Symbol() function as an optional argument.
  • The description of the symbol can be accessed through the .description property.

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

Accessing the Description of the Symbol()

We can access the description of the symbol by calling the .description method.


              
12

            
let firstName = Symbol('Michael');
console.log(firstName.description);
copy

Tarefa

Create two symbols personName and personAdress by using Symbol() give them the description of Name and Address and display their descriptions.

Summary

  • Symbol is a primitive data type that is used to create a unique identifier.
  • We use the global Symbol() function to create symbols.
  • We can provide a description to a Symbol() function as an optional argument.
  • The description of the symbol can be accessed through the .description property.

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Seção 3. Capítulo 29
Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
some-alt