[JS] Implement IPC writer

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Reporter: Brian Hulette / @TheNeuralBit
Assignee: Paul Taylor / @trxcllnt

Related issues:

• [JS] Test arrow data production in integration test (blocks)

PRs and other links:

• GitHub Pull Request #2035

_{Note: This issue was originally created as ARROW-2116. Please see the migration documentation for further details.}

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Brian Hulette / @TheNeuralBit:
[~paul.e.taylor] didn't you work on a JS writer?

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Paul Taylor / @trxcllnt:
@TheNeuralBit  yes, I have a partial implementation in a branch locally. I'm passing this torch to a talented coworker this week, and we'll keep this issue updated.

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Paul Taylor / @trxcllnt:
@TheNeuralBit  the branch is now up at https://github.com/trxcllnt/arrow/tree/js-buffer-writer

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Brian Hulette / @TheNeuralBit:
Issue resolved by pull request 2035
#2035