feat(components): [upload] added index parameter to default slot

[zhuchaoling]

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[pull-request-triage]

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[github-actions]

[github-actions]

Hello @zhuchaoling, thank you for contributing to element-plus, please see our guideline to see how to make contribution

[btea]

Can you describe your usage scenario?

[zhuchaoling]

Can you describe your usage scenario?

自定义文件样式时，删除文件有点麻烦。传index后，直接splice，很ok

[btea]

Perhaps the relevant parameters in the document also need to be updated synchronously.

[github-actions]

🧪 Playground Preview: https://element-plus.run/?pr=17143
Please comment the example via this playground if needed.

[zhuchaoling]

Perhaps the relevant parameters in the document also need to be updated synchronously.

Do I need to update the document, or will you do the update?

[btea]

Yes, you can update it.

[zhuchaoling]

slot

updatedupdated

[btea]

It seems you haven't committed any new code.

[zhuchaoling]

It seems you haven't committed any new code.

Oh sorry, I forgot to push the code. It's okay now.

[btea]

Since index is not passed here, the file slot should not get the corresponding value.

element-plus/packages/components/upload/src/upload.vue

Line 44 in 7648011

<slot name="file" :file="file" />

[zhuchaoling]

Since index is not passed here, the file slot should not get the corresponding value.

element-plus/packages/components/upload/src/upload.vue

Line 44 in 7648011

<slot name="file" :file="file" />

okay already updated

[zhuchaoling]

Since index is not passed here, the file slot should not get the corresponding value.

element-plus/packages/components/upload/src/upload.vue

Line 44 in 7648011

<slot name="file" :file="file" />

Many thanks for your review.

[btea]

@zhuchaoling Hello, it seems that you have taken the initiative to close this PR?

[zhuchaoling]

reopen，Many thanks for your check.