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This feature is well established and works across many devices and browser versions. Its been available across browsers since julho de 2015.
O mtodo valueOf() retorna o valor primitivo de um objeto String.
const stringObj = new String("foo");
console.log(stringObj);
// Expected output: String { "foo" }
console.log(stringObj.valueOf());
// Expected output: "foo"
str.valueOf()
Uma string representando o valor primitivo de um objeto String.
O mtodo valueOf() do objeto String retorna o valor primitivo de um objeto String como um dado do tipo string. Esse valor equivalente a String.prototype.toString().
Esse mtodo normalmente chamado internamente pelo JavaScript e no fica explcito no cdigo.
valueOf()var x = new String("Ol, mundo");
console.log(x.valueOf()); // retorna 'Ol, mundo'
| Specification |
|---|
| ECMAScript 2027 LanguageSpecification # sec-string.prototype.valueof |
This page was last modified on 17 de fev. de 2025 by MDN contributors.
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