@studion/infra-code-blocks/dist/shared/merge-with-defaults.js

Studion common infra components

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.mergeWithDefaults = mergeWithDefaults;
function isPlainObject(value) {
    if (value === null || typeof value !== 'object') {
        return false;
    }
    const prototype = Object.getPrototypeOf(value);
    return prototype === Object.prototype || prototype === null;
}
function mergeObjects(defaults, args) {
    const result = { ...defaults };
    for (const [key, value] of Object.entries(args)) {
        if (value === undefined) {
            continue;
        }
        const defaultValue = defaults[key];
        result[key] =
            isPlainObject(defaultValue) && isPlainObject(value)
                ? mergeObjects(defaultValue, value)
                : value;
    }
    return result;
}
/**
 * Merges `args` into `defaults`, recursively merging plain-object values.
 *
 * `undefined` values in `args` are ignored, including inside nested objects.
 * Arrays, `null`, and non-plain objects are treated as replacement values and
 * are not recursively merged.
 *
 * @example
 * const merged = mergeWithDefaults(
 *   { timeout: 3000, retry: { count: 3, delay: 500 } },
 *   { retry: { count: 5 } },
 * );
 *
 * console.log(merged);
 * // { timeout: 3000, retry: { count: 5, delay: 500 } }
 */
function mergeWithDefaults(defaults, args) {
    return mergeObjects(defaults, args);
}