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Referência JavaScript - JavaScript | MDN

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1. JavaScript
2. Tutoriais
3. Beginner's tutorials
   1. Your first website: Adding interactivity
   2. Dynamic scripting with JavaScript
   3. JavaScript frameworks and libraries
4. Guia de JavaScript
   1. Introdução
   2. Gramática e tipos
   3. Controle de fluxo e tratamento de erros
   4. Repetição e iteração
   5. Funções
   6. Expressões e operadores
   7. Numbers and strings
   8. Representing dates & times
   9. Expressões Regulares
   10. Coleções indexadas
   11. Coleções com chave (chave-valor)
   12. Trabalhando com objetos
   13. Using classes
   14. Usando "promises"
   15. Arranjos tipados em JavaScript
   16. Iteradores e geradores
   17. Resource management
   18. Internationalization
   19. JavaScript modules
5. Intermediário
   1. Advanced JavaScript objects
   2. Asynchronous JavaScript
   3. Client-side web APIs
   4. Language overview
   5. Estruturas de dados de JavaScript
   6. Comparadores de igualdade e semelhança
   7. Enumerabilidade e domínio de propriedades
   8. Closures
6. Avançado
   1. Herança e a cadeia de "prototype"
   2. Metaprogramação
   3. Gerenciamento de memória
7. Referências
8. Objetos pré-definidos
   1. AggregateError
   2. Array
   3. ArrayBuffer
   4. AsyncDisposableStack
   5. AsyncFunction
   6. AsyncGenerator
   7. AsyncGeneratorFunction
   8. AsyncIterator
   9. Atomics
   10. BigInt
   11. BigInt64Array
   12. BigUint64Array
   13. Boolean
   14. DataView
   15. Date
   16. decodeURI()
   17. decodeURIComponent()
   18. DisposableStack
   19. encodeURI()
   20. encodeURIComponent()
   21. Error
   22. escape() Deprecated
   23. eval()
   24. EvalError
   25. FinalizationRegistry
   26. Float16Array
   27. Float32Array
   28. Float64Array
   29. Function
   30. Generator
   31. GeneratorFunction
   32. globalThis
   33. Infinity
   34. Int8Array
   35. Int16Array
   36. Int32Array
   37. InternalError Não padrão
   38. Intl
   39. isFinite()
   40. isNaN()
   41. Iterator
   42. JSON
   43. Map
   44. Math
   45. NaN
   46. Número
   47. Object
   48. parseFloat()
   49. parseInt()
   50. Promise
   51. Proxy
   52. RangeError
   53. ReferenceError
   54. Reflect
   55. RegExp
   56. Set
   57. SharedArrayBuffer
   58. String
   59. SuppressedError
   60. Símbolo
   61. SyntaxError
   62. Temporal Experimental
   63. TypedArray
   64. TypeError
   65. Uint8Array
   66. Uint8ClampedArray
   67. Uint16Array
   68. Uint32Array
   69. undefined
   70. unescape() Deprecated
   71. URIError
   72. WeakMap
   73. WeakRef
   74. WeakSet
9. Expressões e operadores
   1. Adição (+)
   2. Addition assignment (+=)
   3. Assignment (=)
   4. Expressão da função async
   5. async function* expression
   6. await
   7. Bitwise AND (&)
   8. Bitwise AND assignment (&=)
   9. Bitwise NOT (~)
   10. Bitwise OR (|)
   11. Bitwise OR assignment (|=)
   12. Bitwise XOR (^)
   13. Bitwise XOR assignment (^=)
   14. class expression
   15. Operador Vírgula
   16. Operador Condicional Ternário
   17. Decrement (--)
   18. delete
   19. Atribuição via desestruturação (destructuring assignment)
   20. Divisão (/)
   21. Division assignment (/=)
   22. Equality (==)
   23. Operador Exponencial
   24. Exponentiation assignment (**=)
   25. Expressão de função (function expression)
   26. Expressão function*
   27. Greater than (>)
   28. Greater than or equal (>=)
   29. Operador de Agrupamento
   30. import.meta
       1. import.meta.resolve()
   31. import()
   32. in operator
   33. Increment (++)
   34. Desigualdade (!=)
   35. instanceof
   36. Left shift (<<)
   37. Left shift assignment (<<=)
   38. Less than (<)
   39. Less than or equal (<=)
   40. AND lógico (&&)
   41. Logical AND assignment (&&=)
   42. NOT lógico (!)
   43. Logical OR (||)
   44. Logical OR assignment (||=)
   45. Multiplication (*)
   46. Multiplication assignment (*=)
   47. new operator
   48. new.target
   49. null
   50. Nullish coalescing assignment (??=)
   51. Operador de coalescência nula
   52. Inicializador de Objeto
   53. Precedência de Operadores
   54. Encadeamento opcional
   55. Assessores de propriedade
   56. Remainder (%)
   57. Remainder assignment (%=)
   58. Right shift (>>)
   59. Right shift assignment (>>=)
   60. Sintaxe de Espalhamento
   61. Strict equality (===)
   62. Strict inequality (!==)
   63. Subtração (-)
   64. Subtraction assignment (-=)
   65. super
   66. this
   67. typeof
   68. Unary negation (-)
   69. Unary plus (+)
   70. Unsigned right shift (>>>)
   71. Unsigned right shift assignment (>>>=)
   72. void operator
   73. yield
   74. yield*
10. Afirmações e declarações
    1. Funções assíncronas
    2. async function*
    3. await using
    4. block
    5. break
    6. class
    7. const
    8. continue
    9. debugger
    10. do...while
    11. empty
    12. export
    13. Expression statement
    14. for
    15. for await...of
    16. for...in
    17. for...of
    18. Declaração de função
    19. function*
    20. if...else
    21. import
        1. Import attributes
    22. label (Etiqueta)
    23. let
    24. return
    25. switch
    26. throw
    27. try...catch
    28. using
    29. var
    30. while
    31. with Deprecated
11. Funções
    1. Arrow functions
    2. Parâmetros Predefinidos
    3. getter
    4. Definições de Método
    5. Parâmetros Rest
    6. setter
    7. Arguments object
       1. [Symbol.iterator]()
       2. callee Deprecated
       3. length
12. Classes
    1. constructor
    2. extends
    3. Private elements
    4. Public class fields
    5. static
    6. Static initialization blocks
13. Expressões Regulares
    1. Backreference: \1, \2
    2. Capturing group: (...)
    3. Character class escape: \d, \D, \w, \W, \s, \S
    4. Character class: [...], [^...]
    5. Character escape: \n, \u{...}
    6. Disjunction: |
    7. Input boundary assertion: ^, $
    8. Literal character: a, b
    9. Lookahead assertion: (?=...), (?!...)
    10. Lookbehind assertion: (?<=...), (?<!...)
    11. Modifier: (?ims-ims:...)
    12. Named backreference: \k<name>
    13. Named capturing group: (?<name>...)
    14. Non-capturing group: (?:...)
    15. Quantifier: *, +, ?, {n}, {n,}, {n,m}
    16. Escape de classes de caracteres unicode: \p{...}, \P{...}
    17. Wildcard: .
    18. Word boundary assertion: \b, \B
14. Erros
    1. AggregateError: No Promise in Promise.any was resolved
    2. Error: Permission denied to access property "x"
    3. InternalError: too much recursion
    4. RangeError: argument is not a valid code point
    5. RangeError: BigInt division by zero
    6. RangeError: BigInt negative exponent
    7. RangeError: form must be one of 'NFC', 'NFD', 'NFKC', or 'NFKD'
    8. RangeError: invalid array length
    9. RangeError: invalid date
    10. RangeError: precision is out of range
    11. RangeError: radix must be an integer
    12. RangeError: repeat count must be less than infinity
    13. RangeError: repeat count must be non-negative
    14. RangeError: x can't be converted to BigInt because it isn't an integer
    15. ReferenceError: "x" não está definido
    16. ReferenceError: Atribuição à variável não declarada "x"
    17. ReferenceError: can't access lexical declaration`X' before initialization
    18. ReferenceError: must call super constructor before using 'this' in derived class constructor
    19. ReferenceError: super() called twice in derived class constructor
    20. SyntaxError: 'arguments'/'eval' can't be defined or assigned to in strict mode code
    21. SyntaxError: "0"-prefixed octal literals are deprecated
    22. SyntaxError: "use strict" not allowed in function with non-simple parameters
    23. SyntaxError: "x" is a reserved identifier
    24. SyntaxError: \ at end of pattern
    25. SyntaxError: uma declaração na cabeça de um laço for-of não pode ter um inicializador
    26. SyntaxError: applying the 'delete' operator to an unqualified name is deprecated
    27. SyntaxError: arguments is not valid in fields
    28. SyntaxError: await is only valid in async functions, async generators and modules
    29. SyntaxError: await/yield expression can't be used in parameter
    30. SyntaxError: cannot use `??` unparenthesized within `||` and `&&` expressions
    31. SyntaxError: character class escape cannot be used in class range in regular expression
    32. SyntaxError: continue must be inside loop
    33. SyntaxError: duplicate capture group name in regular expression
    34. SyntaxError: duplicate formal argument x
    35. SyntaxError: as declarações da cabeça do laço for-in podem não ter inicializadores
    36. Erro de sintaxe: declaração de função requer um nome
    37. SyntaxError: functions cannot be labelled
    38. SyntaxError: getter and setter for private name #x should either be both static or non-static
    39. SyntaxError: getter functions must have no arguments
    40. SyntaxError: identifier starts immediately after numeric literal
    41. SyntaxError: illegal character
    42. SyntaxError: import declarations may only appear at top level of a module
    43. SyntaxError: incomplete quantifier in regular expression
    44. ReferenceError: invalid assignment left-hand side
    45. SyntaxError: invalid BigInt syntax
    46. SyntaxError: invalid capture group name in regular expression
    47. SyntaxError: invalid character in class in regular expression
    48. SyntaxError: invalid class set operation in regular expression
    49. SyntaxError: invalid decimal escape in regular expression
    50. SyntaxError: invalid identity escape in regular expression
    51. SyntaxError: invalid named capture reference in regular expression
    52. SyntaxError: invalid property name in regular expression
    53. SyntaxError: invalid range in character class
    54. SyntaxError: invalid regexp group
    55. SyntaxError: flag de expressão regular inválida "x"
    56. SyntaxError: invalid unicode escape in regular expression
    57. SyntaxError: JSON.parse: bad parsing
    58. SyntaxError: label not found
    59. Erro de Sintaxe: faltando : depois da propriedade id
    60. Erro de sintaxe falta ) depois da lista de argumentos
    61. SyntaxError: missing ) after condition
    62. SyntaxError: missing ] after element list
    63. SyntaxError: missing } after function body
    64. SyntaxError: missing } after property list
    65. SyntaxError: missing = in const declaration
    66. SyntaxError: missing formal parameter
    67. SyntaxError: missing name after . operator
    68. SyntaxError: missing variable name
    69. SyntaxError: negated character class with strings in regular expression
    70. SyntaxError: new keyword cannot be used with an optional chain
    71. SyntaxError: nothing to repeat
    72. SyntaxError: numbers out of order in {} quantifier.
    73. SyntaxError: octal escape sequences can't be used in untagged template literals or in strict mode code
    74. SyntaxError: parameter after rest parameter
    75. SyntaxError: private fields can't be deleted
    76. SyntaxError: property name __proto__ appears more than once in object literal
    77. SyntaxError: raw bracket is not allowed in regular expression with unicode flag
    78. SyntaxError: redeclaration of formal parameter "x"
    79. SyntaxError: reference to undeclared private field or method #x
    80. SyntaxError: rest parameter may not have a default
    81. SyntaxError: return not in function
    82. SyntaxError: setter functions must have one argument
    83. SyntaxError: unterminated string literal
    84. SyntaxError: super() is only valid in derived class constructors
    85. SyntaxError: tagged template cannot be used with optional chain
    86. SyntaxError: Unexpected '#' used outside of class body
    87. SyntaxError: Unexpected token
    88. SyntaxError: unlabeled break must be inside loop or switch
    89. SyntaxError: unparenthesized unary expression can't appear on the left-hand side of '**'
    90. SyntaxError: use of super property/member accesses only valid within methods or eval code within methods
    91. SyntaxError: Using //@ to indicate sourceURL pragmas is deprecated. Use //# instead
    92. TypeError: 'caller', 'callee', and 'arguments' properties may not be accessed
    93. TypeError: 'x' is not iterable
    94. TypeError: "x" is (not) "y"
    95. TypeError: "x" is not a constructor
    96. TypeError: "x" is not a function
    97. TypeError: "x" is not a non-null object
    98. TypeError: "x" is read-only
    99. TypeError: already executing generator
    100. TypeError: BigInt value can't be serialized in JSON
    101. TypeError: calling a builtin X constructor without new is forbidden
    102. TypeError: can't access/set private field or method: object is not the right class
    103. TypeError: can't assign to property "x" on "y": not an object
    104. TypeError: can't convert BigInt to number
    105. TypeError: can't convert x to BigInt
    106. TypeError: can't define property "x": "obj" is not extensible
    107. TypeError: can't delete non-configurable array element
    108. TypeError: can't redefine non-configurable property "x"
    109. TypeError: can't set prototype of this object
    110. TypeError: can't set prototype: it would cause a prototype chain cycle
    111. TypeError: cannot use 'in' operator to search for 'x' in 'y'
    112. TypeError: class constructors must be invoked with 'new'
    113. TypeError: cyclic object value
    114. TypeError: derived class constructor returned invalid value x
    115. TypeError: getting private setter-only property
    116. TypeError: Initializing an object twice is an error with private fields/methods
    117. TypeError: invalid 'instanceof' operand 'x'
    118. TypeError: invalid Array.prototype.sort argument
    119. TypeError: atribuição inválida para const "x"
    120. TypeError: Iterator/AsyncIterator constructor can't be used directly
    121. TypeError: matchAll/replaceAll must be called with a global RegExp
    122. TypeError: More arguments needed
    123. TypeError: null/undefined has no properties
    124. TypeError: property "x" is non-configurable and can't be deleted
    125. TypeError: Reduce of empty array with no initial value
    126. TypeError: setting getter-only property "x"
    127. TypeError: WeakSet key/WeakMap value 'x' must be an object or an unregistered symbol
    128. TypeError: X.prototype.y called on incompatible type
    129. URIError: malformed URI sequence
    130. Warning: -file- is being assigned a //# sourceMappingURL, but already has one
    131. Warning: unreachable code after return statement
15. Mais conteúdo
    1. Visão geral das Tecnologias JavaScript
    2. Execution model
    3. Gramática léxica
    4. Protocolos de iteração
    5. Strict mode - Modo estrito
    6. Template literals
    7. Trailing commas
    8. Funcionalidades depreciadas

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