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What is `params.require(:person).permit(:name, :age)` doing in Rails 4?
...ey AND (this is critical) will respond with true to the permitted? method. By default, an instance of the ActionController::Parameters class will return false for permitted? Responding true to permitted? means the parameter object can be used in mass assignment; else the app will throw a ForbiddenAt...
Effects of changing Django's SECRET_KEY
...ET_KEY is used in a lot of various places, I'll point out what is impacted by it first and then try to go over that list and give precise explanation of the impact.
The list of things using SECRET_KEY directly or indirectly:
JSON object signing
crypto functions for salted hmacs or seeding the ran...
How to undo a git pull?
... changes.
To the commenter
ORIG_HEAD is previous state of HEAD, set by commands that have possibly dangerous behavior, to be easy to revert them. It is less useful now that Git has reflog: HEAD@{1} is roughly equivalent to ORIG_HEAD (HEAD@{1} is always last value of HEAD, ORIG_HEAD is last va...
Load “Vanilla” Javascript Libraries into Node.js
... you can pass in custom globals (via context), and all the globals created by the script will be added to context. Debugging is also easier because syntax errors and the like will be reported with the correct file name.
shar...
Stack smashing detected
...
Stack Smashing here is actually caused due to a protection mechanism used by gcc to detect buffer overflow errors. For example in the following snippet:
#include <stdio.h>
void func()
{
char array[10];
gets(array);
}
int main(int argc, char **argv)
{
func();
}
The compiler, (...
Using Moq to determine if a method is called
...
You can see if a method in something you have mocked has been called by using Verify, e.g.:
static void Main(string[] args)
{
Mock<ITest> mock = new Mock<ITest>();
ClassBeingTested testedClass = new ClassBeingTested();
testedClass.WorkMethod(mock.Object);
...
What is the difference between Tomcat, JBoss and Glassfish?
...ent answer, though I subscribe to @Arjan's comment: really the memory used by these servers themselves is not that important as compared to how much memory a deployed application will need (and THAT depends strongly on the technologies used. Spring is somewhat of a memory hog)
–...
Skip List vs. Binary Search Tree
...n this answer (2012) and therefore should probably be the preferred answer by now.
– fnl
Jul 11 '17 at 10:45
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show 6 more comments
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Overload with different return type in Java?
Why is it not possible to overload a function just by changing the return type? Will that change in a future version of Java?
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How can I test what my readme.md file will look like before committing to github?
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If you want to test in a browser, you could try StackEdit, as pointed out by @Aaron or Dillinger since Notepag seems to be down now. Personally I use Dillinger since it just works and saves all my documents in my browser's local database.
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