The Symbol.search static data property represents the well-known symbol @@search. The String.prototype.search() method looks up this symbol on its first argument for the method that returns the index within a string that matches the current object.
For more information, see RegExp.prototype[@@search]() and String.prototype.search().
The well-known symbol @@search.
Property attributes of Symbol.search |
|
|---|---|
| Writable | no |
| Enumerable | no |
| Configurable | no |
class caseInsensitiveSearch {
constructor(value) {
this.value = value.toLowerCase();
}
[Symbol.search](string) {
return string.toLowerCase().indexOf(this.value);
}
}
console.log("foobar".search(new caseInsensitiveSearch("BaR"))); // 3
| Specification |
|---|
| ECMAScript Language Specification # sec-symbol.search |
| Desktop | Mobile | Server | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | Deno | Node.js | ||
search |
50 | 79 | 49 | 37 | 10 | 50 | 49 | 37 | 10 | 5.0 | 50 | 1.0 | 6.0.0 | |
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/search