Object Creator

Object Creator is a TypeScript-compatible utility that allows you to create nested JavaScript objects based on string paths. It supports dynamic object structures, including arrays and various data types, making it a versatile tool for managing complex data structures.

Table of Contents

• Installation
• Usage
  • Basic Example
  • Handling Arrays
  • Multiple Entries
• API Reference
• Contributing
• License

Installation

You can install object-creator via npm:

npm install object-creator

Or using Yarn:

yarn add object-creator

Usage

Import the DynamicObject class into your project and use it to build nested objects based on string paths.

Basic Example

Creating a simple nested object without arrays:

import { DynamicObject } from 'object-creator';

const dynObj = new DynamicObject();
dynObj.set('user:object.name:string', 'Alice');
console.log(dynObj.getObject());
// Output: { user: { name: 'Alice' } }

Handling Arrays

Creating nested structures that include arrays:

import { DynamicObject } from 'object-creator';

const dynObj = new DynamicObject();
dynObj.set('user:object.emails:array', '[email protected]');
console.log(dynObj.getObject());
// Output: { user: { emails: ['[email protected]'] } }

Multiple Entries

Adding multiple entries to an array:

import { DynamicObject } from 'object-creator';

const dynObj = new DynamicObject();

// Adding first email
dynObj.set('user:object.emails:array', '[email protected]');

// Adding second email
dynObj.set('user:object.emails:array', '[email protected]');

console.log(dynObj.getObject());
// Output:
// {
//   user: {
//     emails: ['[email protected]', '[email protected]']
//   }
// }

API Reference

DynamicObject

Encapsulates the object being manipulated and provides methods to interact with it.

Constructor

constructor(initialObject?: Record<string, any>);

• Parameters:
  • initialObject (optional): The initial object to update or create. Defaults to an empty object {} if not provided.

Methods

set(path: string, value?: ValueType): Record<string, any>

Creates or updates a value at the specified path.

• Parameters:

  • path (string): The string path indicating where to set the value (e.g., "user:object.emails:array").
  • value (ValueType): The value to set at the specified path.

• Returns:

  • Record<string, any>: The updated object.

• Example:

  dynObj.set('user:object.age:number', 30);
  console.log(dynObj.getObject());
  // Output: { user: { age: 30 } }

getObject(): Record<string, any>

Retrieves the internal object.

• Returns:

  • Record<string, any>: The current object.

• Example:

  const obj = dynObj.getObject();
  console.log(obj);

Type Definitions

type ValueType = string | number | boolean | Record<string, any> | any[];

Path Syntax

• Structure:

  • Use : to denote the type of the current segment.
  • Specify the data type after the colon (e.g., string, number, boolean, object, array).
  • Separate nested keys with a dot ..

• Examples:

  • 'user:object.name:string' creates { user: { name: 'value' } }.
  • 'users:object.list:array.username:string' creates { users: { list: [ { username: 'value' } ] } }.

• Handling Arrays:

  • When a segment is specified as an array, subsequent segments within that array item can be defined.
  • Each call to set with the same array path will append a new entry to the array.

Examples

// Creating a simple nested object
dynObj.set('user:object.profile.name:string', 'Alice');
console.log(dynObj.getObject());
// Output: { user: { profile: { name: 'Alice' } } }

// Creating a nested object with an array
dynObj.set('users:object.list:array.username:string', 'Bob');
console.log(dynObj.getObject());
// Output: { user: { profile: { name: 'Alice' } }, users: { list: [ { username: 'Bob' } ] } }

// Adding another user to the array
dynObj.set('users:object.list:array.username:string', 'Charlie');
console.log(dynObj.getObject());
// Output:
// {
//   user: { profile: { name: 'Alice' } },
//   users: {
//     list: [
//       { username: 'Bob' },
//       { username: 'Charlie' }
//     ]
//   }
// }

Contributing

Contributions are welcome! Please follow these steps to contribute:

1. Fork the Repository

   Click the "Fork" button at the top right of the repository page to create a copy of the repository under your GitHub account.

2. Clone the Forked Repository

   git clone https://github.com/yourusername/object-creator.git

3. Navigate to the Project Directory

   cd object-creator

4. Create a New Branch

   git checkout -b feature/your-feature-name

5. Make Your Changes

   Implement your feature or bug fix.

6. Commit Your Changes

   git commit -m "Add feature: your feature description"

7. Push to the Branch

   git push origin feature/your-feature-name

8. Open a Pull Request

   Go to the original repository and click on "Compare & pull request" to submit your changes for review.

License

This project is licensed under the MIT License.