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Get current stack trace in Ruby without raising an exception
...age] }, :status => 401 }
# format.js { render :js => 'alert("Hello 401")' }
format.js { render :template => 'errors/401.js.erb' }
else
ExceptionNotifier::Notifier.exception_notification(env, exception).deliver
format.html { render :template => "er...
How to set selected value of jquery select2?
...our desired value
$("#mySelect2").select2('data', { id:"elementID", text: "Hello!"});
If you use select2 without AJAX you can do as follow:
<select name="mySelect2" id="mySelect2">
<option value="0">One</option>
<option value="1">Two</option>
<option value="2...
How is pattern matching in Scala implemented at the bytecode level?
...ning to two variables l and r but see below about custom extractors
case "hello" // equality check
case _ : Foo // instance of check
case x => // assignment to a fresh variable
case _ => // do nothing, this is the tail else on the if/else
There's much more that you can do with patterns like...
How do I manage MongoDB connections in a Node.js web application?
...('/api/users', usersRestApi);
app.get('/', (req, res) => {
res.send('Hello World');
});
// Create a MongoDB connection pool and start the application
// after the database connection is ready
MongoClient.connect(config.database.url, { promiseLibrary: Promise }, (err, db) => {
if (err) {
...
How to retrieve a user environment variable in CMake (Windows)
...to do this in a cross-platform way:
cmake -E env EnvironmentVariableName="Hello World" cmake ..
env [--unset=NAME]... [NAME=VALUE]... COMMAND [ARG]...
Run command in a modified environment.
Just be aware that this may only work the first time. If CMake re-configures with one of the co...
How to reverse a singly linked list using only two pointers?
...
Hello! I know this question is old, but would you mind explaining what happens in this function, and why it works. :) Thanks!
– MakeTheTrumpetsBlow
May 27 '17 at 21:15
...
Android - Center TextView Horizontally in LinearLayout
...oid:attr/textAppearanceLarge"
android:padding="10dp"
android:text="HELLO WORLD" />
</LinearLayout>
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Can I initialize a C# attribute with an array or other variable number of arguments?
...
public MyAttribute(params object[] args)
{
}
}
[MyAttribute("hello", 2, 3.14f)]
class Program
{
static void Main(string[] args)
{
}
}
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Role/Purpose of ContextLoaderListener in Spring?
...uration files in <servlet>:
<servlet>
<servlet-name>hello</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<...
javascript node.js next()
...t();
}
app.use(myLogger);
app.get('/', function (req, res) {
res.send('Hello World!');
})
app.listen(3000);
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