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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - %TypedArray%.prototype.indexOf is coercing non-integers or non-floats to numbers wrongly"
href="https://bugs.webkit.org/show_bug.cgi?id=159400">159400</a>
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<th>Summary</th>
<td>%TypedArray%.prototype.indexOf is coercing non-integers or non-floats to numbers wrongly
</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>WebKit Nightly Build
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<th>Hardware</th>
<td>Unspecified
</td>
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<th>OS</th>
<td>Unspecified
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
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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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<th>Reporter</th>
<td>ticaiolima@gmail.com
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<pre>Current implementation of %TypedArray%.prototype.indexOf is coercing the argument to Array type and generating strange results, which are potential bug generators. Check the following example:
<span class="quote">>>> new UInt8Array([0, 1, 2]).indexOf("abc");</span >
0
The return value is 0 because "abc" is being converted to 0. It makes more sense of the result is -1.</pre>
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