My feature

[vemurikarthik]

Here are the GitHub PR diff changes reviewed according to the Coding Standards Document provided:

1. Naming Conventions:

   • It appears that the variable naming convention has not been adhered to. Particularly, the variable names have been changed to single-letter identifiers in VueMiniPlayerCore/index.ts which are not descriptive (e.g., const WrapperID = "CoreWrapper" to const a = "CoreWrapper" and const app = PetiteVue.createApp to const b = PetiteVue.createApp).
   • Function names have been changed to use hyphen-separated words, which is not standard practice. e.g., PrevSong() to Prev-Song().
   • Constants in functions like get songInfoList() have been renamed to get SONGinfoLIST() which is not in camelCase form.

2. Code Formatting:

   • The use of curly braces is not consistent. The code songs.forEach((val) => {{} has an additional opening bracket which may lead to an error.
   • There's a misplaced equality operator in this.SongIdList === list which could possibly be a mistake (this should ideally be an assignment statement).

3. Comments and Documentation:

   • There's a lack of comments documenting changes and explaining the reason behind them. Addition of comments would greatly improve understanding for reviewers and future coders.

4. Modified and New Files:

The modified files are:

- `src/core/MusicPlayerCore/index.ts`
- `src/core/VueMiniPlayerCore/index.ts`

The newly added files are:

- `src/core/VueMiniPlayerCore/index_2.ts`
- `src/core/VueMiniPlayerCore/new-index.ts` 

Recommendations for Improvements:

• Replace single-letter variable names with more descriptive ones that provide context.
• Follow specific case conventions (camelCase or snake_case) consistently throughout the codebase.
• Correct potentially erroneous code blocks, such as misplaced equality sign in this.SongIdList === list and the unmatched curly braces in songs.forEach((val) => {{}.
• Reinstate and follow camelCase in renaming function as function name get SONGinfoLIST() should ideally be get songInfoList().
• Add comments to elaborate the purpose of the code, especially when changes are made, to aid code readability and maintainability.
• Consider including new features or major changes to an existing function, class, or module in the filename when creating a new file.