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Referencing another schema in Mongoose
... mongoose.model('Post', postSchema);
Then, when you make your query, you can populate references like this:
Post.findOne({_id: 123})
.populate('postedBy')
.exec(function(err, post) {
// do stuff with post
});
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Get last result in interactive Python shell
In many symbolic math systems, such as Matlab or Mathematica, you can use a variable like Ans or % to retrieve the last computed value. Is there a similar facility in the Python shell?
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Why does pattern matching in Scala not work with variables?
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What you're looking for is a stable identifier. In Scala, these must either start with an uppercase letter, or be surrounded by backticks.
Both of these would be solutions to your problem:
def mMatch(s: String) = {
val target: String = "a"
s match {
case `tar...
Change directory command in Docker?
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You can run a script, or a more complex parameter to the RUN. Here is an example from a Dockerfile I've downloaded to look at previously:
RUN cd /opt && unzip treeio.zip && mv treeio-master treeio && \
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Comment out text in R Markdown (Rmd file)
...s to evaluate. e.g., <-- Some text with `r mean(x)` inline code --> can result in 'blah not Found' errors on Knit due to the inline code being unexpectedly evaluated.
– Brian D
May 1 '19 at 14:39
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No “pull” in Git Gui?
How can I make a pull using Git GUI tool? It seems there is no pull command anywhere.
3 Answers
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What is the difference between Linq to XML Descendants and Elements
I have came across both these keywords in the VS IntelliSense. I tried to googling the difference between them and did not get a clear answer. Which one of these have the best performance with small to medium XML files. Thanks
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Ruby combining an array into one string
...thod (the argument to join is what to insert between the strings - in this case a space):
@arr.join(" ")
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How to display string that contains HTML in twig template?
How can I display a string that contains HTML tags in twig template?
4 Answers
4
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Disabling Minimize & Maximize On WinForm?
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The Form has two properties called MinimizeBox and MaximizeBox, set both of them to false.
To stop the form closing, handle the FormClosing event, and set e.Cancel = true; in there and after that, set WindowState = FormWindowState.Minimized;, to minim...