@opra/common/helpers/object-utils.js

Opra common package

import { isPlainObject, merge } from '@jsopen/objects';
import { DATATYPE_METADATA } from '../document/constants.js';
export function cloneObject(obj, jsonOnly) {
    return merge({}, obj, {
        deep: v => isPlainObject(v) && !v[DATATYPE_METADATA],
        symbolKeys: true,
        copyDescriptors: true,
        ignoreUndefined: true,
        filter(key, source) {
            const v = source[key];
            return (!jsonOnly ||
                (typeof v !== 'function' &&
                    (typeof v !== 'object' || isPlainObject(v) || Array.isArray(v))));
        },
    });
}