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Please explain some of Paul Graham's points on Lisp
I need some help understanding some of the points from Paul Graham’s What Made Lisp Different .
4 Answers
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Collection was modified; enumeration operation may not execute
...irectly changing the subscribers dictionary under the hood during the loop and leading to that message. You can verify this by changing
foreach(Subscriber s in subscribers.Values)
To
foreach(Subscriber s in subscribers.Values.ToList())
If I'm right, the problem will disappear.
Calling subscribers...
How to hide TabPage from TabControl [duplicate]
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No, this doesn't exist. You have to remove the tab and re-add it when you want it. Or use a different (3rd-party) tab control.
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100% Min Height CSS layout
In particular if you have a layout with a header and footer of fixed height ,
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Reset the database (purge all), then seed a database
Is there a rake command to wipe out the data in the database tables?
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Span inside anchor or anchor inside span or doesn't matter?
I want to nest span and a tags. Should I
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How do you git show untracked files that do not exist in .gitignore
I'm using git status -u to show untracked files. And on the terminal, I see plenty untracked files that I need to be untracked such as unit tests, personal documentation, etc. I have put them in .gitignore , but it seems that git status still shows them.
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Can I get CONST's defined on a PHP class?
I have several CONST's defined on some classes, and want to get a list of them. For example:
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How to scale SVG image to fill browser window?
...my site using (roughly) this technique, albeit with 5% padding all around, and using position:absolute instead of position:fixed:
http://phrogz.net/svg/svg_in_xhtml5.xhtml
(Using position:fixed prevents a very edge-case scenario of linking to a sub-page anchor on the page, and overflow:hidden can e...
Could not find stored procedure 'dbo.aspnet_CheckSchemaVersion'
...uploaded to the server it doesn't work. I've followed all steps correctly. And I have contacted support for my service but it's been over 2weeks and no reply.
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