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/**
* @fileoverview Serialization utils.
* @author Bryan Mishkin
*/
"use strict";
/**
* Check if a value is a primitive or plain object created by the Object constructor.
* @param {any} val the value to check
* @returns {boolean} true if so
* @private
*/
function isSerializablePrimitiveOrPlainObject(val) {
return (
val === null ||
typeof val === "string" ||
typeof val === "boolean" ||
typeof val === "number" ||
(typeof val === "object" && val.constructor === Object) ||
Array.isArray(val)
);
}
/**
* Check if a value is serializable.
* Functions or objects like RegExp cannot be serialized by JSON.stringify().
* Inspired by: https://stackoverflow.com/questions/30579940/reliable-way-to-check-if-objects-is-serializable-in-javascript
* @param {any} val the value
* @returns {boolean} true if the value is serializable
*/
function isSerializable(val) {
if (!isSerializablePrimitiveOrPlainObject(val)) {
return false;
}
if (typeof val === "object") {
for (const property in val) {
if (Object.hasOwn(val, property)) {
if (!isSerializablePrimitiveOrPlainObject(val[property])) {
return false;
}
if (typeof val[property] === "object") {
if (!isSerializable(val[property])) {
return false;
}
}
}
}
}
return true;
}
module.exports = {
isSerializable
};