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What does -> mean in Python function definitions?
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It's a function annotation.
In more detail, Python 2.x has docstrings, which allow you to attach a metadata string to various types of object. This is amazingly handy, so Python 3 extends the feature by allowing you to attach metadata to functions describin...
Is there a Max function in SQL Server that takes two values like Math.Max in .NET?
... isnull(@val2,@val1)
end
... and you would call it like so ...
SELECT o.OrderId, dbo.InlineMax(o.NegotiatedPrice, o.SuggestedPrice)
FROM Order o
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HashSet vs. List performance
It's clear that a search performance of the generic HashSet<T> class is higher than of the generic List<T> class. Just compare the hash-based key with the linear approach in the List<T> class.
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How to revert initial git commit?
I commit to a git repository for the first time; I then regret the commit and want to revert it. I try
9 Answers
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How to solve java.lang.NoClassDefFoundError?
I've tried both the example in Oracle's Java Tutorials . They both compile fine, but at run-time, both come up with this error:
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You asked me to pull without telling me which branch you want to merge with
...ranch is tracking a remote-tracking branch and the remote-tracking branch corresponds to a branch with a different name in the remote repository.)
The simplest way to set up the association between your bucket-4 and bucket-4 in origin is to make sure that the next time you push, you do:
git push -...
Bat file to run a .exe at the command prompt
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To start a program and then close command prompt without waiting for program to exit:
start /d "path" file.exe
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How to run test methods in specific order in JUnit4?
I want to execute test methods which are annotated by @Test in specific order.
18 Answers
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NodeJS: Saving a base64-encoded image to disk
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I think you are converting the data a bit more than you need to. Once you create the buffer with the proper encoding, you just need to write the buffer to the file.
var base64Data = req.rawBody.replace(/^data:image\/png;base64,/, "");
require("fs").writeFile("out.pn...
In git, is there a simple way of introducing an unrelated branch to a repository?
...om the master branch.
The contents of this branch really had a different origin from what
had been developed on the master branch, but they were going to be
merged into the master branch at a later time.
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