@bemedev/decompose/lib/contexts/assign.js

Decompose object and so more

import { isArrayIndex, nextDefault, parseIndex, splitKey } from "../helpers.js";
//#region src/contexts/assign.ts
const _assignByKey = (obj, key, value) => {
	const [first, ...rest] = splitKey(key);
	const out = obj ?? nextDefault(first);
	if (rest.length === 0) {
		if (isArrayIndex(first)) {
			let idx = parseIndex(first);
			if (idx > out.length) idx = out.length;
			out[idx] = value;
		} else out[first] = value;
		return out;
	}
	const nextKey = rest.join(".");
	const next = rest[0];
	const _nextDefault = nextDefault(next);
	if (isArrayIndex(first)) {
		let idx = parseIndex(first);
		if (idx > out.length) idx = out.length;
		out[idx] = _assignByKey(out[idx] ?? _nextDefault, nextKey, value);
	} else out[first] = _assignByKey(out[first] ?? _nextDefault, nextKey, value);
	return out;
};
/**
* Assigns a value to a path in an object.
* @param obj The object to assign the value to
* @param path The key to assign the value to, can be a nested key (e.g. 'a.b.c')
* @param value The value to assign to the key
* @returns The modified object with the value assigned to the specified key
*
* @see {@linkcode Decompose} for more details on object decomposition.
*/
const assignByKey = (obj, path, value) => {
	return _assignByKey(obj, path, value);
};
assignByKey.low = assignByKey;
assignByKey.typed = assignByKey;
//#endregion
export { assignByKey };

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