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      <base href="https://bugs.webkit.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED - Array.prototype methods must use ToLength"
   href="https://bugs.webkit.org/show_bug.cgi?id=144128">144128</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Array.prototype methods must use ToLength
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>528+ (Nightly build)
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>URL</th>
          <td>https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>ASSIGNED
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>JavaScriptCore
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>ljharb&#64;gmail.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Many of the Array.prototype methods have bugs in that they use `array.length &gt;&gt;&gt; 0` to handle array-like objects. This violates <a href="https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength">https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength</a>.

I'll be creating a `ToLength` C++ function, and exposing it to builtins as `&#64;ToLength`, to correct this, along with adding tests.</pre>
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      </p>
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