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  1. Tecnologia Web para desenvolvedores
  2. JavaScript
  3. Referência JavaScript
  4. Objetos Globais
  5. Número
  6. Number.NaN
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Number.NaN

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since julho de 2015.

A propriedade Number.NaN representa Not-A-Number (Não-Número). Equivalente a NaN.

Você não precisa criar um objeto Number para acessar esta propriedade estática (use Number.NaN).

Property attributes of Number.NaN
Writableno
Enumerableno
Configurableno

In this article

Especificações

Specification
ECMAScript® 2027 Language Specification
# sec-number.nan

Compatibilidade com navegadores

Enable JavaScript to view this browser compatibility table.

Veja também

  • O objeto global NaN.
  • O objeto Number ao qual ele pertence.

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This page was last modified on 8 de nov. de 2023 by MDN contributors.

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  1. Objetos Globais
  2. Number
  3. Construtor
    1. Number()
  4. Métodos estáticos
    1. Number.isFinite()
    2. Number.isInteger()
    3. Number.isNaN()
    4. Number.isSafeInteger()
    5. Number.parseFloat()
    6. Number.parseInt()
  5. Propriedades estáticas
    1. Number.EPSILON
    2. Number.MAX_SAFE_INTEGER
    3. Number.MAX_VALUE
    4. Number.MIN_SAFE_INTEGER
    5. Number.MIN_VALUE
    6. Number.NaN
    7. Number.NEGATIVE_INFINITY
    8. Number.POSITIVE_INFINITY
  6. Métodos de instância
    1. toExponential()
    2. Number.prototype.toFixed()
    3. Number.prototype.toLocaleString()
    4. Number.prototype.toPrecision()
    5. Number.prototype.toString()
    6. Number.prototype.valueOf()
  7. Herança
  8. Object/Function
  9. Métodos estáticos
    1. Function.prototype.apply()
    2. Function.prototype.bind()
    3. Function.prototype.call()
    4. Function.prototype.toString()
    5. [Symbol.hasInstance]()
  10. Propriedades estáticas
    1. Function.displayName
    2. Function.length
    3. Function.name
    4. prototype
    5. Function.arguments
    6. Function.caller
  11. Métodos de instância
    1. Object.prototype.__defineGetter__()
    2. Object.prototype.__defineSetter__()
    3. Object.prototype.__lookupGetter__()
    4. Object.prototype.__lookupSetter__()
    5. Object.prototype.hasOwnProperty()
    6. Object.prototype.isPrototypeOf()
    7. Object.prototype.propertyIsEnumerable()
    8. Object.prototype.toLocaleString()
    9. Object.prototype.toString()
    10. Object.prototype.valueOf()
  12. Propriedades de instância
    1. Object.prototype.__proto__
    2. Object.prototype.constructor

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