W3cubDocs

/JavaScript

Symbol.replace

The Symbol.replace static data property represents the well-known symbol @@replace. The String.prototype.replace() method looks up this symbol on its first argument for the method that replaces substrings matched by the current object.

For more information, see RegExp.prototype[@@replace]() and String.prototype.replace().

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

Browser compatibility

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
replace 50 79 49 37 10 50 49 37 10 5.0 50 1.0 6.0.0

See also

© 2005–2023 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/replace