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Heroku “psql: FATAL: remaining connection slots are reserved for non-replication superuser connectio
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Also a common problem is something like that client side app crashing and leaving connections open and then opening new ones when it restarts. If this kind of thing happens a lot then you'll run out of connections. Or the app is just configured improperly and opens too many c...
What is the purpose of base 64 encoding and why it used in HTTP Basic Authentication?
...wered Nov 1 '10 at 16:10
Matt BridgesMatt Bridges
42.9k77 gold badges4444 silver badges5858 bronze badges
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Difference between DirectCast() and CType() in VB.NET
... Console.ReadLine()
End Sub
It will also be shown in the Visual Studio IDE.
This however, does not throw an error:
Sub Main()
Dim newint As Integer = CType(3345.34, Integer)
Console.WriteLine(newint)
Console.ReadLine()
End Sub
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Need to understand the usage of SemaphoreSlim
..., and so the natural thread affinity with semaphores can be a problem.
A side note: DoPollingThenWorkAsync shouldn't have the Async postfix because it's not actually asynchronous, it's synchronous. Just call it DoPollingThenWork. It will reduce confusion for the readers.
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Twig for loop for arrays with keys
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
How do I install a plugin for vim?
... to the list of paths that vim searches for plugins.
Edit:
I recently decided to tweak my vim config and in the process wound up writing the following rakefile. It only works on Mac/Linux, but the advantage over cp versions is that it's completely safe (symlinks don't overwrite existing files, uni...
Undo a particular commit in Git that's been pushed to remote repos
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Identify the hash of the commit, using git log, then use git revert <commit> to create a new commit that removes these changes. In a way, git revert is the converse of git cherry-pick -- the latter applies the patch to...
Count occurrences of a char in plain text file
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How about this:
fgrep -o f <file> | wc -l
Note: Besides much easier to remember/duplicate and customize, this is about three times (sorry, edit! botched the first test) faster than Vereb's answer.
sha...
Simple Log to File example for django 1.3+
...ogging.NullHandler' because 'django.utils.log.NullHandler' is no longer valid, but the rest worked for me in 1.11
– JacquelineIO
Sep 6 '17 at 2:45
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NameError: global name 'xrange' is not defined in Python 3
...re actively making a Python 2 codebase compatible with Python 3, you can bridge the code by adding the global name to your module as an alias for range. (Take into account that you may have to update any existing range() use in the Python 2 codebase with list(range(...)) to ensure you still get a li...