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Rails 4 multiple image or file upload using carrierwave
...ne field in an array! It certainly wouldn't be considered the "rails way". What if you then want to remove some, or add extra files to the post? I'm not saying it wouldn't be possible, I'm just saying it would be ugly. A join table is a much better idea.
– Toby 1 Kenobi
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ASP.NET Web Site or ASP.NET Web Application?
...They were not created as an add-in. Visual Studio 2005 SP1 simply restored what Visual Studio 2005 RTM mistakenly removed.
– John Saunders
Jun 30 '09 at 2:09
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Speed up the loop operation in R
...figure out the bottleneck, think about more efficient algorithms for doing what you want. Calculations should be only run once if possible, so:
Store the results and access them rather than repeatedly recalculating
Take non-loop-dependent calculations out of loops
Avoid calculations which aren't ...
How to implement custom JsonConverter in JSON.NET to deserialize a List of base class objects?
...and it turned out to provide the answer. Here is a link: Type converting.
What's required is to subclass JsonConverter, overriding the ReadJson method and creating a new abstract Create method which accepts a JObject.
The JObject class provides a means to load a JSON object and
provides acces...
Representing and solving a maze given an image
What is the best way to represent and solve a maze given an image?
10 Answers
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Can I make a function available in every controller in angular?
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In the first solution, what if there are tons of foo() functions? Making a $scope.callFoo() wrapper for every one of them is too much work. How can I "attach" all functions of a library into scope so that it can be used in the template? I have a bi...
Why '&&' and not '&'?
...lso add an example of how & or | is used with non-bool arguments (i.e. what the operators do) for the benefit of all persons new.
– Zabba
Sep 7 '11 at 9:52
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Selecting and manipulating CSS pseudo-elements such as ::before and ::after using jQuery
...one you use depends on your exact requirements.
I'm going to start with what's widely considered the "best" approach:
1) Add/remove a predetermined class
In this approach, you've already created a class in your CSS with a different :after or :before style. Place this "new" class later in your s...
Is it safe to ignore the possibility of SHA collisions in practice?
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The usual answer goes thus: what is the probability that a rogue asteroid crashes on Earth within the next second, obliterating civilization-as-we-know-it, and killing off a few billion people? It can be argued that any unlucky event with a probability ...
iOS 7 status bar back to iOS 6 default style in iPhone app?
...e and technical reasons, why this is not always a good idea. You should do what is best for your users and not simply follow the whimsy of the platform.
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