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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...
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...
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...
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...
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);
...
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, (...
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)
–...
How can I test what my readme.md file will look like before committing to github?
...
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.
...
How do I fix the Visual Studio compile error, “mismatch between processor architecture”?
...m referencing an MS library built for AMD64. This is in Visual Studio 2010 by the way, and appears to be introduced by installing the VS2012 and .Net 4.5.
Since I can't change the MS library I'm referencing, and since I know that my target deployment environment will only ever be 64-bit, I can safe...
SyntaxError: Non-ASCII character '\xa3' in file when function returns '£'
...ymbol is not an ASCII character. Try using UTF-8 encoding. You can start by putting # -*- coding: utf-8 -*- at the top of your .py file. To get more advanced, you can also define encodings on a string by string basis in your code. However, if you are trying to put the pound sign literal in to yo...