StackOverflow2013

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plurals

PO
primarykey
Id
4949829
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
6
CommunityOwnedDate
CreationDate
2011-02-09T20:02:17.617
FavoriteCount
0
LastActivityDate
2015-10-02T22:49:07.310
LastEditDate
2017-05-23T11:55:07.730
LastEditorUserId
-1
OwnerUserId
361684
ParentId
4603021
PostTypeId
2
Score
37
ViewCount
0
LastEditorDisplayName
text
Body
<h2>Why is this answer still getting upvotes?</h2> Per <a href="https://stackoverflow.com/a/24694804/361684">Mikaël Mayer's answer</a>, this is no longer a problem, and my answer is obsolete (<code>go()</code> now returns <code>30</code> after mucking with the console). This was fixed in July 2013, according to the <a href="http://code.google.com/p/chromium/issues/detail?id=124206" rel="nofollow noreferrer">bug report</a> linked above in <a href="https://stackoverflow.com/questions/4603021/is-it-possible-to-change-javascript-variable-values-while-debugging-in-google-ch/4949829#comment22050829_4603021">gabrielmaldi's comment</a>. It alarms me that I'm still getting upvotes - makes me think the upvoter doesn't understand either the question or my answer. I'll leave my original answer here for historical reasons, but go upvote <a href="https://stackoverflow.com/a/24694804/361684">Mikaël's answer</a> instead. <hr> The trick is that you can't change a local variable directly, but you can modify the properties of an object. You can also modify the value of a global variable: <pre><code>var g_n = 0; function go() { var n = 0; var o = { n: 0 }; return g_n + n + o.n; // breakpoint here } </code></pre> console: <pre><code>> g_n = 10 10 > g_n 10 > n = 10 10 > n 0 > o.n = 10 10 > o.n 10 </code></pre> Check the result of <code>go()</code> after setting the breakpoint and running those calls in the console, and you'll find that the result is 20, rather than 0 (but sadly, not 30).
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1. POIs it possible to change javascript variable values while debugging in Google Chrome?
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1. POIs it possible to change javascript variable values while debugging in Google Chrome?
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