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#162 — 15.4.4.6 Array pop stores string length value

• bug_id: 162
• creation_ts: 2011-07-21 09:41:00 -0700
• short_desc: 15.4.4.6 Array pop stores string length value
• delta_ts: 2015-10-02 14:33:04 -0700
• product: ECMA-262, Editions 5 and 5.1
• component: technical content
• version: Edition 5.1
• rep_platform: All
• op_sys: All
• bug_status: RESOLVED
• resolution: FIXED
• priority: Normal
• bug_severity: normal
• blocked: 163
• everconfirmed: true
• reporter: Allen Wirfs-Brock
• assigned_to: Allen Wirfs-Brock

---

• commentid: 361
• comment_count: 0
• who: Allen Wirfs-Brock
• bug_when: 2011-07-21 09:41:20 -0700

from: https://mail.mozilla.org/pipermail/es5-discuss/2011-July/004062.html



Hi,

I think there's a typo/bug in spec for Array.prototype.pop. 15.4.4.6,
step 5d says:

"Call the [[Put]] internal method of O with arguments "length", indx, and true"

But indx is the result of a call to ToString (step 5a). Now the
length property's value is a string, when it should be a number.

Is that right?

Thanks,

Matt Carroll
_________________________

This but was introduced in the E5 Spec.

It needs to go into the ES5.1 errata.

---

• commentid: 581
• comment_count: 1
• who: Allen Wirfs-Brock
• bug_when: 2012-01-12 12:22:37 -0800

set IN_PROGRESS to indicated this should go into ES5.1 Errata.

---

• commentid: 14735
• comment_count: 2
• who: Brian Terlson
• bug_when: 2015-10-02 14:33:04 -0700

Bulk resolving ES5.1 errata issues as a sampling suggests these are all fixed. If this is in error, please open a new issue on GitHub.