Optimize the HoursTransformer #784
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tmeyer2115
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May 19, 2021
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cea2aj
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## Version 1.22.0 ### Changes - Code coverage reports are now generated automatically for the Theme. (#759) - A number of dependencies were updated in accordance with Dependabot's suggestions. (#780) - The build time in `Development` mode was reduced significantly. (#782, #829) Build times in `Production` mode were also decreased. (#783, #825) - Two new cards supporting videos were added: `product-prominentvideo` and `multilang-product-prominentvideo`. These cards work with either YouTube or Vimeo content. (#794) - The process for formatting hours was made more efficient, resulting in faster renders for cards with hours. (#784) - Any SDK branch can now be specified in the `global_config.sdkVersion` attribute. (#791) - Unused CSS was removed from the Theme. (#793, #798) - To reduce flashing related to the SDK Component lifecycle, placeholder skeletons were added for the `SearchBar` and `Navigation` components. (#797) - Additional acceptance tests were added for the `VerticalFullPageMap` and Percy snapshots are now generated for all cards. (#830, #820) - Multi-language tests were added for the Theme. (#826) - The `documentsearch-standard` card now supports rich text featured snippets. (#838) - A new concept, `RuntimeConfig` was added. This allows configuration, computed at run-time, to be injected into the Theme and SDK. This new concept enables JWT integrations as well. (#843) ### Bug Fixes - A number of changes were made to make the Theme's visual regression tests more reliable. (#764, #765, #766, #778) - Corrected how the CTA URLs for the `menuitem-standard` and `multilang-menuitem-standard` cards are computed. (#787) - The Google Streetview person icon is now visible when using the `VerticalFullPageMap` layout. (#801) - The size of the cluster and result pins are now configurable. (#807) - A double encoding error for `verticalUrl` was fixed. (#836) - The `Opens At` open status message is now properly translated in all languages. (#834)
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Improve the HoursTransformer
The clonedeep unnecessarily increased the computation time. Removing it improves performance by about 22%. This PR also improves the clarity of the code by making it more functional and making the data models easier to understand.
J=SLAP-1289
TEST=manual, auto
Smoke test the openStatus formatter and the hoursList formatter which both rely on this code. Add unit tests. Benchmark the code by running the function 1000 times and comparing the time in milliseconds before and after.