Symbol.replace

The Symbol.replace well-known symbol specifies the method that replaces matched substrings of a string. This function is called by the String.prototype.replace() method.

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

Examples

Using Symbol.replace

class CustomReplacer {
  constructor(value) {
    this.value = value;
  }
  [Symbol.replace](string) {
    return string.replace(this.value, '#!@?');
  }
}

console.log('football'.replace(new CustomReplacer('foo')));
// expected output: "#!@?tball"

Specifications

Browser compatibility

See also

• A polyfill of Symbol.replace is available in core-js
• Symbol.match
• Symbol.search
• Symbol.split
• RegExp.prototype[@@replace]()