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Character Limit in HTML
...n. That's why it's far better to check it on the server side, with a PHP / Python / whatever script.
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Double not (!!) operator in PHP
...alue the language assigns to the result of any expression. For example, in Python:
>>> not not []
False
>>> not not [False]
True
It can be convenient in places where you want to reduce a complex value down to something like "is there a value at all?".
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How to delete a record in Django models?
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How can I access and process nested objects, arrays or JSON?
...t... what about JSON?
JSON is a textual representation of data, just like XML, YAML, CSV, and others. To work with such data, it first has to be converted to JavaScript data types, i.e. arrays and objects (and how to work with those was just explained). How to parse JSON is explained in the questio...
Linux error while loading shared libraries: cannot open shared object file: No such file or director
...libraries are published in different versions simultaneously, for example, Python.
Library location
If you are sure that the right package is installed, and ldconfig didn't find it, it may just be in a nonstandard directory. By default, ldconfig looks in /lib, /usr/lib, and directories listed in /...
Installing Java 7 on Ubuntu
...l any version, first execute the following commands:
sudo apt-get install python-software-properties
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
Then, depending on the version you want to install, execute one of the following commands:
Oracle JDK 7:
sudo apt-get install ora...
Difference between static and shared libraries?
...preters (browser engines or Node.js, for instance). On the other hand, the Python Programming Language has several implementations. The official one is CPython, but there are others written in other languages.
– J. C. Rocamonde
Mar 28 at 23:05
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How can I get a side-by-side diff when I do “git diff”?
...by-side display mode for each of the files with differences.
Install with:
python3 -m pip install --user ydiff
-or-
brew install ydiff
For git log, you can use:
ydiff -ls -w0
-w0 auto-detects your terminal width. See the ydiff GitHub repository page for detail and demo.
Tested in Git 2.18.0, ydi...
Ioc/DI - Why do I have to reference all layers/assemblies in application's entry point?
...ng either in the form of convention-based assembly-scanning (preferred) or XML configuration.
When you do that, however, you must remember to copy the assemblies to the application's bin folder, because that no longer happens automatically. Personally, I rarely find it worth that extra effort.
A m...
Is there a difference between single and double quotes in Java?
...';
String s = "hello";
They cannot be used any other way around (like in Python, for example).
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