feat:improve-efficiency-overhead

[admirsaheta]

What changes are you making?

We are optimizing the encodeToJSON function and the UIColor extension to improve performance and maintainability. Specifically, we are:

1. Reusing JSONEncoder : By creating a single instance of JSONEncoder , we avoid the overhead of creating a new encoder each time the function is called, which can lead to performance improvements.
2. Caching UIColor Instances : The UIColor extension now caches color instances to avoid redundant parsing of hex strings and creation of new UIColor objects, improving performance when the same colors are used repeatedly.

How to test

Performance Testing : Measure the performance of the functions before and after the changes to verify improvements.

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PR Checklist

Important

• I've added tests to support my implementation
• I have read and agree with the Contribution Guidelines.
• I have read and agree with the Code of Conduct.
• I've updated the README.

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Checklist for releasing a new version

• I have bumped the version number in the package.json file.
• I have added a Changelog entry.

Tip

See the Contributing documentation for instructions on how to publish a new version of the library.

[Copilot]

Pull Request Overview

This PR improves performance and maintainability by optimizing JSON encoding and caching UIColor instances.

• Reuses a JSONEncoder instance to reduce overhead
• Caches UIColor instances by hex string to avoid redundant computations

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
modules/@shopify/checkout-sheet-kit/ios/ShopifyCheckoutSheetKit.swift	Replaces per-call JSONEncoder instantiation with a reusable instance and adds caching logic for UIColor extensions.
CHANGELOG.md	Updates changelog entries reflecting the performance improvements introduced.

[markmur]

Thanks for the contribution but the performance gain here is negligible.