Symbol.replace
The Symbol.replace static data property represents the well-known symbol @@replace. The String.prototype.replace() and String.prototype.replaceAll() methods look up this symbol on their first argument for the method that replaces substrings matched by the current object.
For more information, see RegExp.prototype[@@replace](), String.prototype.replace(), and String.prototype.replaceAll().
Try it
Value
The well-known symbol @@replace.
Property attributes of Symbol.replace |
|
|---|---|
| Writable | no |
| Enumerable | no |
| Configurable | no |
Examples
Using Symbol.replace
js
class CustomReplacer {
constructor(value) {
this.value = value;
}
[Symbol.replace](string) {
return string.replace(this.value, "#!@?");
}
}
console.log("football".replace(new CustomReplacer("foo"))); // "#!@?tball"
Specifications
| Specification |
|---|
| ECMAScript Language Specification # sec-symbol.replace |
Browser compatibility
| desktop | mobile | server | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
replace | |||||||||||||