size-of-object

Get the size of a JavaScript object in bytes

Uses the Buffer.from(objectToString) method to convert the object's string representation to a buffer, and then it uses the byteLength property to obtain the buffer size in bytes.

Supported Standard built-in and complex types

• Map
• Set
• BigInt
• Function
• Typed Arrays (Int8Array, Uint32Array, Float64Array, etc)

Error handling

An instance of SizeOfError if is impossible to calculate the size of the object.

• JSON serialization error, e.g. circular references.
• Unrecognizable object.

It prevents potential exceptions or infinite loops, improving reliability.

Installation

npm install size-of

Examples

import { sizeOf } from "size-of-object";
const size = sizeOf({ abc: "def" });
console.log(`Size of the object: ${sizeObj} bytes`);

License

This project is licensed under the MIT License.

Credits

This project is a fork of object-sizeof, originally created by Andrei Karpushonak aka @miktam and licensed under the MIT License.

The original code has been reworked to comply with the latest TypeScript standards and to improve performance and reliability.

Compared to the original, this version offers:

• No browser support, only work in node focusing on performance by simplifying the code and removing unnecessary checks
• Better types and support for both CommonJS and ESM
• Error are getting thrown instead of returning magic numbers
• Focus on performance by simplifying the code and removing unnecessary checks