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How do I create multiple submit buttons for the same form in Rails?
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You can create multiple submit buttons and provide a different value to each:
<% form_for(something) do |f| %>
..
<%= f.submit 'A' %>
<%= f.submit 'B' %>
..
<% end %>
This will output:
<input type="submit" value="A" i...
What does middleware and app.use actually mean in Expressjs?
... haven't found a clear, concise explanation of what middleware actually is and what the app.use statement is doing. Even the express docs themselves are a bit vague on this. Can you explain these concepts for me please?
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Modifying the “Path to executable” of a windows service
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There is also this approach seen on SuperUser which uses the sc command line instead of modifying the registry:
sc config <service name> binPath= <binary path>
Note: the space after binPath= is important. You can also query the current configuration using:
sc qc <service na...
Class type check in TypeScript
...19.4 The instanceof operator
The instanceof operator requires the left operand to be of type Any, an object type, or a type parameter type, and the right operand to be of type Any or a subtype of the 'Function' interface type. The result is always of the Boolean primitive type.
So you could use
myS...
Is there an equivalent to 'continue' in a Parallel.ForEach?
I am porting some code to Parallel.ForEach and got an error with a continue I have in the code. Is there something equivalent I can use in a Parallel.ForEach functionally equivalent to continue in a foreach loop?
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Calling dynamic function with dynamic number of parameters [duplicate]
...n generate another array with all the arguments except the very first one, and then use this new array, but, are there any other solution which not using other array?
– ARemesal
Mar 24 '09 at 11:18
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Warning message: In `…` : invalid factor level, NA generated
I don't understand why I got this warning message.
5 Answers
5
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jQuery UI slider Touch & Drag/Drop support on Mobile devices
I have already styled and implemented jQuery UI slider into a project. Though it's responsive, the slider does not respond to being touched and dragged. Instead, you have to touch where you want the slider to go. I'd like to avoid swapping to jQuery mobile UI, which supports touching and dragging, s...
How to avoid reverse engineering of an APK file?
I am developing a payment processing app for Android, and I want to prevent a hacker from accessing any resources, assets or source code from the APK file.
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How do I iterate over the words of a string?
...re's another way to extract tokens from an input string, relying only on standard library facilities. It's an example of the power and elegance behind the design of the STL.
#include <iostream>
#include <string>
#include <sstream>
#include <algorithm>
#include <iterator&g...