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How to design a product table for many kinds of product where each product has many parameters
...stead, one table per product type, storing both common product attributes, and product-specific attributes.
Serialized LOB: One table for Products, storing attributes common to all product types. One extra column stores a BLOB of semi-structured data, in XML, YAML, JSON, or some other format. This...
Get to UIViewController from UIView?
...r directly.
The view should instead be independent of the view controller, and be able to work in different contexts.
Should you need the view to interface in a way with the view controller, the recommended way, and what Apple does across Cocoa is to use the delegate pattern.
An example of how to ...
Dealing with multiple Python versions and PIP?
...This is the recommendation because it works across all versions of Python, and in all forms of virtualenv. For example:
# The system default python:
$ python -m pip install fish
# A virtualenv's python:
$ .env/bin/python -m pip install fish
# A specific version of python:
$ python-3.6 -m pip inst...
Windows batch script launch program and exit console
...s in the background. What do I have to do in order to launch notepad.exe and make the cmd window disappear?
7 Answers
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execJs: 'Could not find a JavaScript runtime' but execjs AND therubyracer are in Gemfile
...
Ubuntu Users:
I had the same problem and I fixed it by installing nodejson my system independent of the gem.
on ubuntu its: sudo apt-get install nodejs
I'm using 64bit ubuntu 11.10
update:
From @Galina 's answer below I'm guessing that the latest version of ...
libpng warning: iCCP: known incorrect sRGB profile
I'm trying to load a PNG image using SDL but the program doesn't work and this error appears in the console
13 Answers
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pass post data with window.location.href
... POST data to the new page I'm opening. is this possible using JavaScript and jQuery?
8 Answers
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Why can't I define a static method in a Java interface?
...ic interface methods were initially considered as a small language change, and then there was an official proposal to add them in Java 7, but it was later dropped due to unforeseen complications.
Finally, Java 8 introduced static interface methods, as well as override-able instance methods with a d...
Trying to fix line-endings with git filter-branch, but having no luck
... Windows/Linux line-ending issue with git. It seems, via GitHub, MSysGit, and other sources, that the best solution is to have your local repos set to use linux-style line endings, but set core.autocrlf to true . Unfortunately, I didn't do this early enough, so now every time I pull changes the...
What reason is there to use null instead of undefined in JavaScript?
I've been writing JavaScript for quite a long time now, and I have never had a reason to use null . It seems that undefined is always preferable and serves the same purpose programmatically. What are some practical reasons to use null instead of undefined ?
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