style(lint): fix JavaScript lint errors in ndarray.js and sync.js #6271

[JaySoni1]

Resolves #6271

Description

What is the purpose of this pull request?

This pull request:

• Fix JavaScript lint errors Fix JavaScript lint errors #6271

Related Issues

Does this pull request have any related issues?

This pull request:

• resolves Fix JavaScript lint errors #6271

Questions

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No.

Other

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No.

Checklist

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• Read, understood, and followed the contributing guidelines.

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[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
stats/base/meanpn	$\color{green}256/256$ $\color{green}+100.00\%$	$\color{green}16/16$ $\color{green}+100.00\%$	$\color{green}2/2$ $\color{green}+100.00\%$	$\color{green}256/256$ $\color{green}+100.00\%$

The above coverage report was generated for the changes in this PR.

[JaySoni1]

@kgryte , @Planeshifter please review

[kgryte]

As the upstream issue was a false positive, the changes proposed in this PR are not desired. As such, I will go ahead and close this PR.