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Mvn install or Mvn package
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from http://maven.apache.org/guides/getting-started/maven-in-five-minutes.html
package: take the compiled code and package it in its distributable
format, such as a JAR.
install: install the package into the local repos...
Checking for empty queryset in Django
... the documentation too, for instance: docs.djangoproject.com/en/1.8/topics/http/shortcuts/#id7
– Wtower
May 22 '15 at 9:02
1
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Append a dictionary to a dictionary [duplicate]
...ons.ChainMap", but I just discovered that it was only added in Python 3.3: https://docs.python.org/3.3/library/collections.html#chainmap-objects
You can try to crib the class from the 3.3 source though: http://hg.python.org/cpython/file/3.3/Lib/collections/init.py#l763
Here is a less feature-full ...
“for” vs “each” in Ruby
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loop1[1].call
two
=> nil
loop2[1].call
three
=> nil
source: http://paulphilippov.com/articles/enumerable-each-vs-for-loops-in-ruby
for more clear: http://www.ruby-forum.com/topic/179264#784884
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Reverse of JSON.stringify?
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http://jsbin.com/tidob/1/edit?js,console,output
The native JSON object includes two key methods.
1. JSON.parse()
2. JSON.stringify()
The JSON.parse() method parses a JSON string - i.e. reconstructing the original JavaSc...
Where in a virtualenv does the custom code go?
...d tear down virtualenvs it would make sense to look at virtualenvwrapper.
http://pypi.python.org/pypi/virtualenvwrapper
With virtualenvwrapper you can
* create and delete virtual environments
* organize virtual environments in a central place
* easily switch between environments
You no more ...
How do I move a file with Ruby?
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Use the module 'fileutils' and use FileUtils.mv:
http://www.ruby-doc.org/stdlib-2.0/libdoc/fileutils/rdoc/FileUtils.html#method-c-mv
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jQuery validation: change default error message
...Remember the Milk signup form used in the Validation plugin documentation (http://jquery.bassistance.de/validate/demo/milk/), you can easily specify your own messages:
var validator = $("#signupform").validate({
rules: {
firstname: "required",
lastname: "required",
usern...
How to get started on TDD with Ruby on Rails? [closed]
...e article is broken, but found it here: web.archive.org/web/20100325215651/http://bloritsch.d-haven.net/…
– fivetwentysix
Dec 1 '11 at 20:40
add a comment
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What does .class mean in Java?
... etc.
Check these links (already mentioned above) to get all the details:
https://docs.oracle.com/javase/tutorial/reflect/class/classNew.html
https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html
Normally you don't plan on using Reflection right away when you start building your project. ...