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Maven: The packaging for this project did not assign a file to the build artifact
...aven-install-plugin and maven-deploy-plugin are copying/uploading the same set of files. So when you only execute deploy:deploy, then there are no files put in the context and there is nothing to deploy.
Indeed, the deploy:deploy needs some runtime information placed in the build context by previo...
Postgres dump of only parts of tables for a dev snapshot
...
On your larger tables you can use the COPY command to pull out subsets...
COPY (SELECT * FROM mytable WHERE ...) TO '/tmp/myfile.tsv'
COPY mytable FROM 'myfile.tsv'
https://www.postgresql.org/docs/current/static/sql-copy.html
You should consider maintaining a set of development data ra...
Why does Typescript use the keyword “export” to make classes and interfaces public?
...public", but asides from "export/private/protected" being a poorly matched set of access modifiers, I believe there is a subtle difference between the two that explains this.
In TypeScript, marking a class member as public or private has no effect on the generated JavaScript. It is simply a design ...
Use of Initializers vs Constructors in Java
...I'm confused when you say:
static/instance initializers can be used to set the value of "final"
static/instance variables whereas a constructor cannot
I assume you are saying both:
static initializers can be used to set the value of "final" static variables whereas a constructor cannot
ins...
How can I tell Rails to use RSpec instead of test-unit when creating a new Rails app?
... to get a good understanding of what each option does.
Once everything is set you can run all your tests with:
bundle exec rspec
You can read more about the recommended spec_helper and rails_helper configurations on https://kolosek.com/rails-rspec-setup.
...
Object of custom type as dictionary key
... based equality) can
explicitly flag themselves as being
unhashable by setting __hash__ = None
in the class definition. Doing so
means that not only will instances of
the class raise an appropriate
TypeError when a program attempts to
retrieve their hash value, but they
will also be ...
req.body empty on posts
... HTTP post actions with a raw JSON data payload, select the raw option and set the following header parameters:
Content-Type: application/json
Also, be sure to wrap any strings used as keys/values in your JSON payload in double quotes.
The body-parser package will parse multi-line raw JSON payl...
Escape curly brace '{' in String.Format [duplicate]
...code becomes:
sb.AppendLine(String.Format("public {0} {1} {{ get; private set; }}",
prop.Type, prop.Name));
// For prop.Type of "Foo" and prop.Name of "Bar", the result would be:
// public Foo Bar { get; private set; }
s...
Python - Count elements in list [duplicate]
...
To find count of unique elements of list use the combination of len() and set().
>>> ls = [1, 2, 3, 4, 1, 1, 2]
>>> len(ls)
7
>>> len(set(ls))
4
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Disable form auto submit on button click
...ke <button>Click to do something</button> are submit buttons.
Set type="button" to change that. type="submit" is the default (as specified by the HTML recommendation).
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