@sprucelabs/schema/build/esm/utilities/cloneDeep.js

Static and dynamic binding plus runtime validation and transformation to ensure your app is sound. 🤓

export default function cloneDeep(obj, transformer) {
    var _a;
    const o = obj;
    let result = o;
    let type = {}.toString.call(o).slice(8, -1);
    if (type == 'Set') {
        return new Set([...o].map((value) => cloneDeep(value, transformer)));
    }
    if (type == 'Map') {
        const items = [];
        [...o.entries()].forEach((kv) => {
            if ((transformer === null || transformer === void 0 ? void 0 : transformer(kv[1], kv[0])) !== false) {
                items.push([cloneDeep(kv[0]), cloneDeep(kv[1])]);
            }
        });
        return new Map(items);
    }
    if (type == 'Date') {
        return new Date(o.getTime());
    }
    if (type == 'RegExp') {
        return RegExp(o.source, getRegExpFlags(o));
    }
    if (type == 'Array' || type == 'Object') {
        result = Array.isArray(o) ? [] : {};
        for (let key in o) {
            result[key] =
                (_a = transformer === null || transformer === void 0 ? void 0 : transformer(o[key], key)) !== null && _a !== void 0 ? _a : cloneDeep(o[key], transformer);
        }
    }
    // primitives and non-supported objects (e.g. functions) land here
    return result;
}
function getRegExpFlags(regExp) {
    if (typeof regExp.source.flags == 'string') {
        return regExp.source.flags;
    }
    else {
        let flags = [];
        regExp.global && flags.push('g');
        regExp.ignoreCase && flags.push('i');
        regExp.multiline && flags.push('m');
        regExp.sticky && flags.push('y');
        regExp.unicode && flags.push('u');
        return flags.join('');
    }
}