ollama-qwen2_5-coder-output-sample.md

Example of using jsondiffpatch to maintain the evolving state of a model defined in terms of a TypeScript interface. Several example properties, one with a nested interface, and at least one very large string property where diffs would be warranted (as opposed to just storing the entire string each time a change is made)

To demonstrate how jsondiffpatch can be used to maintain the evolving state of a model defined in terms of a TypeScript interface, let's consider an example. We'll define a TypeScript interface for a user profile that includes nested interfaces and a very large string property.

First, let's define our TypeScript interfaces:

interface Address {
  street: string;
  city: string;
  zipCode: string;
}

interface User {
  id: number;
  name: string;
  email: string;
  address: Address;
  biography: string; // Very large string property
}

Next, let's create an instance of the User interface:

const initialUser: User = {
  id: 1,
  name: "John Doe",
  email: "john.doe@example.com",
  address: {
    street: "123 Main St",
    city: "Anytown",
    zipCode: "12345"
  },
  biography: `Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.`
};

Now, let's make some changes to the user profile and use jsondiffpatch to calculate the differences:

import jsondiffpatch from 'jsondiffpatch';

// Create a new instance of jsondiffpatch with default options
const delta = jsondiffpatch.diff(initialUser, {
  id: 1,
  name: "Jane Doe",
  email: "jane.doe@example.com",
  address: {
    street: "456 Elm St",
    city: "Anycity",
    zipCode: "67890"
  },
  biography: `Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed
quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum
exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla pariatur?`
});

console.log(delta);

The jsondiffpatch.diff function will return a delta object that describes the differences between the initial user and the modified user. The output will look something like this:

{
  "name": "Jane Doe",
  "email": "jane.doe@example.com",
  "address": {
    "street": "456 Elm St",
    "city": "Anycity",
    "zipCode": "67890"
  },
  "biography": "[big string diff]"
}

The biography property will be marked as [big string diff], indicating that the entire string is not included in the delta. Instead, only the differences would be stored, which can save a lot of space and bandwidth when dealing with large strings.

This demonstrates how jsondiffpatch can be used to efficiently track changes to complex data structures, including those with very large string properties.