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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Avoid 2 times name iteration in Object.assign"
href="https://bugs.webkit.org/show_bug.cgi?id=147268">147268</a>
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<th>Summary</th>
<td>Avoid 2 times name iteration in Object.assign
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>528+ (Nightly build)
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<th>Hardware</th>
<td>Unspecified
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<th>OS</th>
<td>Unspecified
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
</td>
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<th>Component</th>
<td>JavaScriptCore
</td>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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</tr>
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<th>Reporter</th>
<td>utatane.tea@gmail.com
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</tr></table>
<p>
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<pre>Object.assign calls Object.getOwnPropertyNames & Object.getOwnPropertySymbols to collect all the names.
But exposing the private API that collects both at the same time makes the API efficient when the given Object has so many non-indexed properties.
Since Object.assign is so generic API (some form of utility API), the form of the given Object is not expected.
This is why I think this optimization is required.</pre>
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