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Convert Long into Integer
...re a wider range than an Integer).
Java 8 has a helper method that checks for overflow (you get an exception in that case):
Integer i = theLong == null ? null : Math.toIntExact(theLong);
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Best way to implement Enums with Core Data
...requencyWeekly = 3
} PaymentFrequency;
Then, declare getters and setters for your property. It's a bad idea to override the existing ones, since the standard accessors expect an NSNumber object rather than a scalar type, and you'll run into trouble if anything in the bindings or KVO systems try an...
Always pass weak reference of self into block in ARC?
...it.
ad infinitum
Thus, those two objects will just hang around in memory for the life of the program even though they should, if everything were working properly, be deallocated.
So, what we're worried about is retain cycles, and there's nothing about blocks in and of themselves that create thes...
Can an AJAX response set a cookie?
...an set cookie in the AJAX request in the server-side code just as you'd do for a normal request since the server cannot differentiate between a normal request or an AJAX request.
AJAX requests are just a special way of requesting to server, the server will need to respond back as in any HTTP reques...
Get the value of an instance variable given its name
...pus = cpus
end
end
In this case, if you did Computer.new, you would be forced to use instance_variable_get to get at @cpus. But if you're doing this, you probably mean for @cpus to be public. What you should do is:
class Computer
attr_reader :cpus
end
Now you can do Computer.new(4).cpus.
N...
Serializing class instance to JSON
...ONEncoder.default() function, and make that function emit the correct JSON for your class.
A simple solution would be to call json.dumps() on the .__dict__ member of that instance. That is a standard Python dict and if your class is simple it will be JSON serializable.
class Foo(object):
def ...
Real world use cases of bitwise operators [closed]
... than waste 4. These can be mapped to enumeration types in many languages for added convenience.
Communication over ports/sockets
Always involves checksums, parity, stop bits, flow control algorithms, and so on, which usually depend on the logic values of individual bytes as opposed to numeric valu...
Store JSON object in data attribute in HTML jQuery
...
So using the data- approach allows me to store the value for each delete button (each button gets a different json object...) I have in the table by putting in the hmtl tag like I showed above. Is what you're suggesting going to allow me to associate each object with to the corresp...
Read environment variables in Node.js
...VARIABLE is the name of the variable you wish to access.
See Node.js docs for process.env.
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Circular gradient in android
...m fully-opaque red to semi-transparent blue.
– Simon Forsberg
Jan 7 '13 at 17:36
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