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Rails migrations: self.up and self.down versus change
Looks like the new rails version has "change" versus self.up and self.down methods.
3 Answers
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target input by type and name (selector)
...cument.getElementsByClassName method which will be used to select elements and be much faster than selecting by the name attribute
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How can I add an item to a SelectList in ASP.net MVC
...nsert an item at the beginning of a SelectList with the default value of 0 and the Text Value of " -- Select One --"
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How can I tell if my server is serving GZipped content?
I have a webapp on a NGinx server. I set gzip on in the conf file and now I'm trying to see if it works. YSlow says it's not, but 5 out of 6 websites that do the test say it is. How can I get a definite answer on this and why is there a difference in the results?
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When to make a type non-movable in C++11?
...x objects. If std::mutex contained a native OS mutex type as a data member and the native type's address must stay fixed (because the OS maintains a list of pointers to its mutexes) then either std::mutex would have to store the native mutex type on the heap so it would stay at the same location whe...
Why Func instead of Predicate?
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While Predicate has been introduced at the same time that List<T> and Array<T>, in .net 2.0, the different Func and Action variants come from .net 3.5.
So those Func predicates are used mainly for consistency in the LINQ operators. As of .net 3.5, about using Func<T> and Action...
What's the difference between io.sockets.emit and broadcast?
What's the difference between io.sockets.emit and socket.broadcast.emit? Is it only that broadcast emits to everyone BUT the socket that sends it?
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How to use the ProGuard in Android Studio?
This is my first project in Android Studio, and the code of my apps are not obfuscated.
Im using this configuration in build.gradle file:
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What is the difference between sites-enabled and sites-available directory?
What is use of these two directories in apache2 and how can we do it?
3 Answers
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When to use std::size_t?
I'm just wondering should I use std::size_t for loops and stuff instead of int ?
For instance:
13 Answers
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