Symbol.search
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2015.
O símbolo Symbol.search
é um método conhecido por retornar o índice com uma string que corresponde a expressão regular. Essa função é chamada pelo método String.prototype.search()
.
Para mais informação, veja RegExp.prototype[@@search]()
e String.prototype.search()
.
Experimente
class Search1 {
constructor(value) {
this.value = value;
}
[Symbol.search](string) {
return string.indexOf(this.value);
}
}
console.log("foobar".search(new Search1("bar")));
// Expected output: 3
Property attributes of Symbol.search | |
---|---|
Writable | no |
Enumerable | no |
Configurable | no |
Exemplos
Pesquisa de string personalizada
js
class caseInsensitiveSearch {
constructor(value) {
this.value = value.toLowerCase();
}
[Symbol.search](string) {
return string.toLowerCase().indexOf(this.value);
}
}
console.log("foobar".search(new caseInsensitiveSearch("BaR")));
// resultado esperado: 3
Especificações
Specification |
---|
ECMAScript® 2025 Language Specification # sec-symbol.search |
Compatibilidade com navegadores
Report problems with this compatibility data on GitHubdesktop | mobile | server | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
search |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.