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  1. Tecnologia Web para desenvolvedores
  2. JavaScript
  3. Referência JavaScript
  4. Operadores
  5. Bitwise XOR (^)
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Bitwise XOR (^)

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.

O operador bitwise XOR (^) retorna o numero 1 em cada posição de bit para a qual os bits correspondentes de ambos, mas não de ambos os operandos, são 1s.

In this article

Experimente

const a = 5; // 00000000000000000000000000000101 const b = 3; // 00000000000000000000000000000011 console.log(a ^ b); // 00000000000000000000000000000110 // Expected output: 6

Sintaxe

a ^ b

Descrição

Os operandos são convertidos em números inteiros de 32 bits e expressados por uma série de bits (zeros e uns). Numeros com mais de 32 bits descartam seus bits mais significativos. Por exemplo, o número inteiro a seguir com mais de 32 bits será convertido em um número inteiro de 32 bits:

Antes: 11100110111110100000000000000110000000000001 Depois: 10100000000000000110000000000001

Cada bit no primeiro operando é emparelhado com o bit correspondente no segundo operando: primeiro bit para o primeiro bit, segundo bit para o segundo bit e assim por diante.

O operador é aplicado para cada par de bits e o resultado é construído em bitwise.

A tabela verdade para a operação XOR é:

a b a XOR b
0 0 0
0 1 1
1 0 1
1 1 0
js
. 9 (base 10) = 00000000000000000000000000001001 (base 2) 14 (base 10) = 00000000000000000000000000001110 (base 2) -------------------------------- 14 ^ 9 (base 10) = 00000000000000000000000000000111 (base 2) = 7 (base 10)

Bitwise XORing any number x with 0 yields x.

Exemplos

Usando bitwise XOR

js
// 9 (00000000000000000000000000001001) // 14 (00000000000000000000000000001110) 14 ^ 9; // 7 (00000000000000000000000000000111)

Especificações

Specification
ECMAScript® 2027 Language Specification
# prod-BitwiseXORExpression

Compatibilidade com navegadores

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  14. Mais conteúdo
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