Symbol.search
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()
.
Try it
Value
The well-known symbol @@search
.
Property attributes of Symbol.search |
|
---|---|
Writable | no |
Enumerable | no |
Configurable | no |
Examples
Custom string search
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"))); // 3
Specifications
Specification |
---|
ECMAScript Language Specification # sec-symbol.search |
Browser compatibility
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