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From: Kevin Carhart <kevin@carhart.net>
To: edbrowse-dev@lists.the-brannons.com
Subject: [edbrowse-dev] 'this' in a breakpoint
Date: Tue, 4 Jun 2019 22:20:52 -0700 (PDT)	[thread overview]
Message-ID: <alpine.DEB.2.21.1906042209080.211189@carhart.net> (raw)

I think 'this' is always returning window within a breakpoint.  So if you 
have to echo let's say, a, where a = (this, b), I think you would get a 
result that didn't reflect the real run.

To recreate, try it with jsrt

I went to the Circle function and added an alert that produces the 

when jsrt is run with no breakpoints, what is 'this' in function Circle? 
[object Object]

And I assigned window.preserve_this = this
Then I echoed preserve_this from jdb:
[object Object]

Now I restored Circle, so jsrt is back to factory settings.
Now I put a breakpoint in Circle and echoed 'this' at the breakpoint 

b base
bp: this
[object global]

Do you think my experiment is sound and can this be alleviated?


             reply	other threads:[~2019-06-05  5:20 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-05  5:20 Kevin Carhart [this message]
2019-06-05  5:49 ` [edbrowse-dev] " Kevin Carhart
2019-06-05  7:07 ` [edbrowse-dev] " Karl Dahlke

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