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Collection was modified; enumeration operation may not execute
... .Net collections do not support being enumerated and modified at the same time. If you try to modify the collection list during enumeration, it raises an exception. So the issue behind this error is, we can not modify the list/dictionary while we are looping through the same.
One of the solutions...
About catching ANY exception
...e with the statement, "shouldn't." You should do it sparingly. There are times when you're dealing with third party libraries (sometimes dynamically loaded!!) that have gone totally crazy with exceptions and tracking them all down can be a very painful task, and if you miss just one, you have a v...
Good introduction to the .NET Reactive Framework [closed]
...of the full series,
Introduction to Rx
Static and extension methods
Lifetime management – Completing and Unsubscribing
Flow control
Combining multiple IObservable streams
Scheduling and threading
Hot and Cold observables
Testing Rx
Buffer, Window, Join and Group Join
I will keep updating this...
npm failed to install time with make not found error
When i try to install time on nodejs server i get the below error:
5 Answers
5
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Can Powershell Run Commands in Parallel?
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So I tried this suggestion several times, but it seems that my variables aren't getting expanded correctly. To use the same example, when this line executes: Test-Path "\\$_\c$\Something" I would expect it to expand $_ into the current item. However, it doesn'...
How to overwrite the previous print to stdout in python?
...Kay: I tried that in python on my Mac: In [3]: print "Thing to erase\r", ; time.sleep(1) ; print "--------------\r", -------------- I think your problem is Windows and its different line ends. Try this: import curses; curses.setupterm(fd=sys.stdout.fileno()); print(hex(curses.tigetstr('cr'))); It sh...
Count immediate child div elements using jQuery
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Sometimes this does not work and you have to use $('#foo').children().size() which is faster anyway according to @mrCoder
– 472084
Sep 22 '11 at 9:45
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How can I do an asc and desc sort using underscore.js?
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Doesn't this increase the time complexity? It causes the list to be sorted twice.
– user1477388
Apr 21 '16 at 16:21
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What are the best PHP input sanitizing functions?
...ll other needs? For example, date inputs should be validated through strtotime or the DateTime class. The given date should be between the ranges you expect. What about email addresses? The previously mentioned filter extension can check that an address is well-formed, though I'm a fan of the is...
Ignoring time zones altogether in Rails and PostgreSQL
I'm dealing with dates and times in Rails and Postgres and running into this issue:
2 Answers
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