@nestjs/graphql/dist/utils/extend.util.js

Nest - modern, fast, powerful node.js web framework (@graphql)

export function extend(obj1, obj2) {
    if (typeof obj1 === 'string') {
        const extraItems = obj2 == null ? [] : Array.isArray(obj2) ? obj2 : [obj2];
        return typeof obj2 === 'string'
            ? [obj1 ?? '', obj2 ?? '']
            : [obj1 ?? ''].concat(extraItems);
    }
    if (Array.isArray(obj1)) {
        const extraItems = obj2 == null ? [] : Array.isArray(obj2) ? obj2 : [obj2];
        return obj1.concat(extraItems);
    }
    return {
        ...(obj1 || {}),
        ...(obj2 || {}),
    };
}