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Preventing Laravel adding multiple records to a pivot table
I have a many to many relationship set up and working, to add an item to the cart I use:
5 Answers
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How to delete the contents of a folder?
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import os, shutil
folder = '/path/to/folder'
for filename in os.listdir(folder):
file_path = os.path.join(folder, filename)
try:
if os.path.isfile(file_path) or os.path.islink(file_path):
os.unlink(fi...
“Insufficient Storage Available” even there is lot of free space in device memory
...MB. In Galaxy Note I , while updating my app, it's saying "Insufficient Storage Available", where there is 214 MB of free space in device memory (internal). It happens even trying to download a new app.
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Creating a byte array from a stream
What is the prefered method for creating a byte array from an input stream?
16 Answers
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Make sure only a single instance of a program is running
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The following code should do the job, it is cross-platform and runs on Python 2.4-3.2. I tested it on Windows, OS X and Linux.
from tendo import singleton
me = singleton.SingleInstance() # will sys.exit(-1) if other instance is running
The latest code version is available sing...
Java 8 stream's .min() and .max(): why does this compile?
Note: this question originates from a dead link which was a previous SO question, but here goes...
5 Answers
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How to use php serialize() and unserialize()
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A PHP array or object or other complex data structure cannot be transported or stored or otherwise used outside of a running PHP script. If you want to persist such a complex data structure beyond a single run of a script, you need to se...
Define: What is a HashSet?
HashSet
The C# HashSet data structure was introduced in the .NET Framework 3.5. A full list of the implemented members can be found at the HashSet MSDN page.
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What is duck typing?
...that do not have strong typing.
The idea is that you don't need a type in order to invoke an existing method on an object - if a method is defined on it, you can invoke it.
The name comes from the phrase "If it looks like a duck and quacks like a duck, it's a duck".
Wikipedia has much more inform...
Singleton: How should it be used
...an answer that has links to a lot of questions/answers about singletons: More info about singletons here:
24 Answers
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