Paul Taylor created ARROW-4578:
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Summary: [JS] Float16Vector toArray should be zero-copy
Key: ARROW-4578
URL: https://issues.apache.org/jira/browse/ARROW-4578
Project: Apache Arrow
Issue Type: Bug
Components: JavaScript
Affects Versions: JS-0.4.0
Reporter: Paul Taylor
Assignee: Paul Taylor
Fix For: JS-0.4.1
The {{Float16Vector#toArray()}} implementation currently transforms each half
float into a single float, and returns a Float32Array. All the other
{{toArray()}} implementations are zero-copy, and this deviation would break
anyone expecting to give two-byte half floats to native APIs like WebGL. We
should instead include {{Float16Vector#toFloat32Array()}} and
{{Float16Vector#toFloat64Array()}} convenience methods that do rely on copying.
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