@tanstack/svelte-table/dist/merge-objects.js

Headless UI for building powerful tables & datagrids for Svelte.

export function mergeObjects(...sources) {
    const target = {};
    for (let source of sources) {
        if (typeof source === 'function')
            source = source();
        if (source) {
            const descriptors = Object.getOwnPropertyDescriptors(source);
            for (const key in descriptors) {
                if (key in target)
                    continue;
                Object.defineProperty(target, key, {
                    enumerable: true,
                    get() {
                        for (let i = sources.length - 1; i >= 0; i--) {
                            let v, s = sources[i];
                            if (typeof s === 'function')
                                s = s();
                            // eslint-disable-next-line prefer-const
                            v = (s || {})[key];
                            if (v !== undefined)
                                return v;
                        }
                    },
                });
            }
        }
    }
    return target;
}
export function flatMerge(...sources) {
    const result = {};
    for (let source of sources) {
        if (typeof source === 'function')
            source = source();
        if (!source)
            continue;
        for (const key of Reflect.ownKeys(source)) {
            const value = source[key];
            if (value !== undefined) {
                result[key] = value;
            }
        }
    }
    return result;
}