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Is it bad practice to have a constructor function return a Promise?
...ew Engine()
engine.displayPosts();
If that task is asynchronous, you can now easily return a promise for its results from the method, to easily wait until it is finished.
I would however not recommend this pattern when the method (asynchronously) mutates the instance and other methods depend on th...
What exactly is Heroku?
...arted learning Ruby on rails and I was wondering what Heroku really is? I know that its a cloud that helps us to avoid using servers? When do we actually use it?
...
Is there a combination of “LIKE” and “IN” in SQL?
...that violate nearly every rule of normalization. I can't change that right now. But that's irrelevant to the question.
25 A...
How to write trycatch in R
...lly = {
message('All done, quitting.')
}
)
}
Now, running three cases:
A valid case
log_calculator(10)
# 2.30258509299405
# Successfully executed the log(x) call.
# All done, quitting.
A "warning" case
log_calculator(-10)
# Caught an warning!
# <simpleWarning in...
Tree view of a directory/folder in Windows? [closed]
...n - tree.txt" will open
For "Text encoding" tick the "MS-DOS" option
You now have an editable tree structure file.
This works for versions of Windows from Windows XP to Windows 8.1.
share
|
impro...
What's the hardest or most misunderstood aspect of LINQ? [closed]
...ks about or at least including LINQ in the context of C# . I'd like to know which topics are worth giving a fair amount of attention to, based on what people may find hard to understand, or what they may have a mistaken impression of. I won't be specifically talking about LINQ to SQL or the E...
Query EC2 tags from within instance
...
The ec2metadata tool is deprecated. Now you query the 'magic' URL at 169.254.169.254/latest/meta-data - hit it with cURL and it gives you magic endpoints you can use to get various bits of data. In this case curl http://169.254.169.254/latest/meta-data/instance...
What are “Groovy” and “Grails” and what kinds of applications are built using them?
Nowadays I hear a lot about "Groovy on Grails" and I want to know more about it:
4 Answers
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How can I force Powershell to return an array when a call only returns one object?
...
Gah, this is what happened last time too, now I can't replicate it. At any rate I solved my recent problem by using Return ,$out which seems to always work. If I run into the problem again I'll post an example.
– Deadly-Bagel
Ju...
ASP.NET WebApi vs MVC ? [closed]
...er post mentions on the second line that it is merged into Asp.net web api now and supports self hosting. I have updated link anyway with more recent one. Hope that will help.
– Yusubov
Sep 19 '15 at 2:47
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