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When and why should I use fragments in Android applications? [duplicate]
... each screen can simply access the object reference through the Activity.
https://softwareengineering.stackexchange.com/questions/244771/why-use-android-fragments
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Proper way to handle multiple forms on one page in Django
...he answers by @adam-nelson and @daniel-sokolowski and comment by @zeraien (https://stackoverflow.com/a/17303480/2680349):
# views.py
def _get_form(request, formcls, prefix):
data = request.POST if prefix in request.POST else None
return formcls(data, prefix=prefix)
class MyView(TemplateVie...
Using vagrant to run virtual machines with desktop environment
...y the VirtualBox GUI when booting the machine
vb.gui = true
end
# https://askubuntu.com/questions/1067929/on-18-04-package-virtualbox-guest-utils-does-not-exist
config.vm.provision "shell", inline: "sudo apt-add-repository multiverse && sudo apt-get update"
# Install xfce and v...
structure vs class in swift language
... Excerpt From: Apple Inc. “The Swift Programming Language.” iBooks.
https://itun.es/us/jEUH0.l
This is the biggest difference between structs and classes. Structs are copied and classes are referenced.
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Is there a way to auto-adjust Excel column widths with pandas.ExcelWriter?
...e details on working with XlsxWriter with pandas this link might be useful https://xlsxwriter.readthedocs.io/working_with_pandas.html
import pandas as pd
writer = pd.ExcelWriter(excel_file_path, engine='xlsxwriter')
df.to_excel(writer, sheet_name="Summary")
workbook = writer.book
worksheet = writer...
Java 8 Iterable.forEach() vs foreach loop
...DIT: Looks like some of the original proposals for lambdas (such as http://www.javac.info/closures-v06a.html Google Cache) solved some of the issues I mentioned (while adding their own complications, of course).
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Django: multiple models in one template using forms [closed]
...simplify the case of working with related objects via a foreign key".
See https://docs.djangoproject.com/en/dev/topics/forms/modelforms/#inline-formsets
How to benchmark efficiency of PHP script
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Try https://github.com/fotuzlab/appgati
It allows to define steps in the code and reports time, memory usage, server load etc between two steps.
Something like:
$appgati->Step('1');
// Do some code ...
$appgat...
Including all the jars in a directory within the Java classpath
... examples must use a backslash preceding entries with a trailing asterisk: https://bugs.openjdk.java.net/browse/JDK-8131329
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Is there any way to enforce typing on NSArray, NSMutableArray, etc.?
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Have a look at https://github.com/tomersh/Objective-C-Generics, a compile-time (preprocessor-implemented) generics implementation for Objective-C. This blog post has a nice overview. Basically you get compile-time checking (warnings or erro...