Java script class

[dev-madhurendra]

Describe your change

• Add a concept ?
• Fix a bug or typo in an existing algorithm?
• Documentation change?

Checklist

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized.
• I know that pull requests will not be merged if they fail the automated tests.
• This PR only changes one file. To ease review, please open separate PRs for separate concepts.
• All new folders are placed in an existing directory.
• All new files are placed inside an existing directory.
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  Example:Golang is allowed but golang is not
• All filenames should use the UpperCamelCase (PascalCase) style. There should be no spaces in filenames.
  Example:Class.cpp is allowed but classe.cpp is not
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• If this pull request resolves one or more open issues then the commit message contains Fixes: #{$ISSUE_NO}