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Can someone explain collection_select to me in clear, simple terms?
I am going through the Rails API docs for collection_select and they are god-awful.
2 Answers
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Do I need a content-type header for HTTP GET requests?
...e.
It means that the Content-Type HTTP header should be set only for PUT and POST requests.
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Struct constructor: “fields must be fully assigned before control is returned to the caller.”
...ution. You don't have the validation benefits of the Probability property. And it doesn't fix everything because you also need to change Distance and Damage to non-anonymous properties otherwise it will not work. I prefer @Chris-Amelinckx s answer as a better solution.
– hwcver...
When should I use std::thread::detach?
... also know join() waits until a thread completes. This is easy to understand, but what's the difference between calling detach() and not calling it?
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Socket.io rooms difference between broadcast.to and sockets.in
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Node.js was something I was really interested forawhile and I used it in one of my project to make a multiplayer game.
io.sockets.in().emit() and socket.broadcast.to().emit() are the main two emit methods we use in Socket.io's Rooms (https://github.com/LearnBoost/socket.io/wiki/R...
Difference between UTF-8 and UTF-16?
Difference between UTF-8 and UTF-16?
Why do we need these?
5 Answers
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Differences between numpy.random and random.random in Python
.... I inspired myself in other people's code so I ended up using the numpy.random module for some things (for example for creating an array of random numbers taken from a binomial distribution) and in other places I use the module random.random .
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Predicate in Java
... someone guide me to any tutorial or conceptual explanation of Predicate and its implementation in Java?
4 Answers
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Display image as grayscale using matplotlib
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The following code will load an image from a file image.png and will display it as grayscale.
import numpy as np
import matplotlib.pyplot as plt
from PIL import Image
fname = 'image.png'
image = Image.open(fname).convert("L")
arr = np.asarray(image)
plt.imshow(arr, cmap='gray', vmin...
How to use a WSDL
...ice. They sent me the WSDL file.
What should I do to add it to my website and start using it as the proxy.
( If I put it on a Virtual Directory it can be discovered, but does it grant me the connection with the real web service?)
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