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Rails nested form with has_many :through, how to edit attributes of join model?
How do you edit the attributes of a join model when using accepts_nested_attributes_for?
3 Answers
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Can I call memcpy() and memmove() with “number of bytes” set to zero?
Do I need to treat cases when I actully have nothing to move/copy with memmove() / memcpy() as edge cases
2 Answers
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Initializing a member array in constructor initializer
...ant to do (that is, initialize an array in a constructor (not assigning elements in the body)). Is it even possible?
Yes. It's using a struct that contains an array. You say you already know about that, but then I don't understand the question. That way, you do initialize an array in the const...
How to iterate over the keys and values in an object in CoffeeScript?
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Use for x,y of L. Relevant documentation.
ages = {}
ages["jim"] = 12
ages["john"] = 7
for k,v of ages
console.log k + " is " + v
Outputs
jim is 12
john is 7
You may also want to consider the variant for own k,v of ages as mentioned by Aaron Dufour...
What is the difference between Culture and UICulture?
Could someone give me a bit more information on the difference between Culture and UICulture within the .NET framework? What they do and when to use what?
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Updating address bar with new URL without hash or reloading the page
I either dreamt about chrome (dev channel) implementing a way to update the address bar via javascript (the path, not domain) without reloading the page or they really have done this.
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Fade Effect on Link Hover?
on many sites, such as http://www.clearleft.com , you'll notice that when the links are hovered over, they will fade into a different color as opposed to immediately switching, the default action.
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Check if a table exists in Rails
I have a rake task that won't work unless a table exists. I'm working with more than 20 engineers on a website so I want to make sure they have migrated the table before they can do a rake task which will populate that respective table.
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How to pass macro definition from “make” command line arguments (-D) to C source code?
I usually pass macro definitions from "make command line" to a "makefile" using the option :
-Dname=value. The definition is accessible inside the makefile.
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Fastest way to convert Image to Byte array
I am making Remote Desktop sharing application in which I capture an image of the Desktop and Compress it and Send it to the receiver. To compress the image I need to convert it to a byte[].
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