@opra/common/esm/helpers/safe-json-stringify.js

Opra common package

export function safeJsonStringify(value, replacer, space) {
    const seen = new WeakSet();
    return JSON.stringify(value, (k, v) => {
        if (v !== null && typeof v === 'object') {
            if (seen.has(v))
                return;
            seen.add(v);
        }
        if (replacer)
            return replacer(k, v);
        return v;
    }, space);
}