@opra/common/helpers/monkey-patches.js

Opra common package

"use strict";
/** monkey patch (hijack)
 * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt#use_within_json
 */
if (!BigInt.prototype.toJSON) {
    BigInt.prototype.toJSON = function () {
        return this.toString();
    };
}
if (!RegExp.prototype.toJSON) {
    RegExp.prototype.toJSON = function () {
        return this.toString();
    };
}