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Why use Ruby's attr_accessor, attr_reader and attr_writer?
...
You may use the different accessors to communicate your intent to someone reading your code, and make it easier to write classes which will work correctly no matter how their public API is called.
class Person
attr_accessor :age
...
end
Here, I can see that I may both read and write the age....
Confused about stdin, stdout and stderr?
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Standard input - this is the file handle that your process reads to get information from you.
Standard output - your process writes normal information to this file handle.
Standard error - your process writes error information to this file handle.
That's about as dumbed-down as I ...
What's the difference between commit() and apply() in SharedPreferences
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What happens if I write something with apply() and try to read it immediately after? Is the read guaranteed to give me the newest value? The docs say if another commit() happens after you fire apply(), that commit() will block until the apply() is persisted to disk, which makes it c...
Error: No default engine was specified and no extension was provided
...ire('ejs').renderFile);
app.set('view engine', 'html');
EDIT
As you can read from view.js Express View Module
module.exports = View;
/**
* Initialize a new `View` with the given `name`.
*
* Options:
*
* - `defaultEngine` the default template engine name
* - `engines` template engine ...
What is Type-safe?
...ever enough (I'm not), you should be able to predict what will happen when reading Javascript code.
An example of a type-unsafe programming language is C: reading / writing an array value outside of the array's bounds has an undefined behaviour by specification. It's impossible to predict what will...
Why is using a wild card with a Java import statement bad?
...at I can tell at a glance which class you meant to use, which simply makes reading the code that much easier. If you're just doing a quick one-off thing, there's nothing explicitly wrong, but future maintainers will thank you for your clarity otherwise.
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Reading header data in Ruby on Rails
...ain"
replace "Content-Type" with the name of the header that you want to read.
Update for Rails 4.2
There are 2 ways to get them in Rails 4.2:
Old way (still working):
request.headers["Cookie"]
New way:
request.headers["HTTP_COOKIE"]
To get a Hash with all headers of the request.
reques...
What exactly is RESTful programming?
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This is wrong. Read this for correct interpretation of REST roy.gbiv.com/untangled/2008/rest-apis-must-be-hypertext-driven or this stackoverflow.com/questions/19843480/…
– HalfWebDev
Aug 25 '17 ...
How To: Execute command line in C#, get STD OUT results
...bat";
p.Start();
// Do not wait for the child process to exit before
// reading to the end of its redirected stream.
// p.WaitForExit();
// Read the output stream first and then wait.
string output = p.StandardOutput.ReadToEnd();
p.WaitForExit();
Code is from MSDN.
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Can you explain the HttpURLConnection connection process?
...ge=" + message);.
From getInputStream():
Returns an input stream that reads from this open connection. A SocketTimeoutException can be thrown when reading from the returned input stream if the read timeout expires before data is available for read.
getInputStream does the opposite. Like getOu...