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.
El símbolo conocido como Symbol.search
especifica el método que devuelve el índice dentro de una cadena que coincide con la expresión regular. Esta función es llamada por el método String.prototype.search()
.
Para más información, véase RegExp.prototype[@@search]()
y String.prototype.search()
.
Pruébalo
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
Atributos de la propiedad Symbol.search | |
---|---|
Sobrescribir | No |
Numerable | No |
Configurable | No |
Ejemplos
Búsqueda de cadenas personalizadas
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
Especificaciones
Specification |
---|
ECMAScript® 2025 Language Specification # sec-symbol.search |
Compatibilidad con navegadores
Report problems with this compatibility data on GitHubdesktop | mobile | server | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
search |
Legend
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- 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.