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Behaviour of increment and decrement operators in Python
...t I presume that you wouldn't expect a hypothetical ++ operator to work on strings.)
++count
Parses as
+(+count)
Which translates to
count
You have to use the slightly longer += operator to do what you want to do:
count += 1
I suspect the ++ and -- operators were left out for consistency...
XML Validation with XSD in Visual Studio IDE
...w">
<xs:sequence>
<xs:element name="Name" type="xs:string" minOccurs="1" maxOccurs="1" />
<xs:element name="Value" type="xs:float" minOccurs="1" maxOccurs="1" />
</xs:sequence>
</xs:complexType>
<!-- Use the type (note the "this:" prefix) -...
What does the caret operator (^) in Python do?
...that means I can craft my own operator which allows int concatenation with strings? man, python is way complex than I thought
– K DawG
Oct 18 '13 at 13:47
1
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What’s the best RESTful method to return total number of items in an object?
...he convention of prefixing the names of unstandardized parameters with the string X-.
– JDawg
Feb 5 '19 at 17:38
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Why does Math.round(0.49999999999999994) return 1?
....printf("%016x\n", Double.doubleToLongBits(d));
}
public static void main(String args[]) {
double a = 0.5;
double b = 0.49999999999999994;
print(a); // 3fe0000000000000
print(b); // 3fdfffffffffffff
print(a+b); // 3ff0000000000000
print(1.0); // 3ff000000000...
How can I measure the speed of code written in PHP? [closed]
...ime"]=>
float(0) //too fast...
["f_result"]=>
string(11) "hello world"
}
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How to import other Python files?
...t__.py.
You can use the __import__ function. It takes the module name as a string. (Again: module name without the '.py' extension.)
pmName = input('Enter module name:')
pm = __import__(pmName)
print(dir(pm))
Type help(__import__) for more details.
...
Task not serializable: java.io.NotSerializableException when calling function outside closure only o
...the outer class, you can't do it. But FileWriter can be constructed from a String or a File, both of which are Serializable. So refactor your code to construct a local FileWriter based on the filename from the outer class.
– Trebor Rude
Jul 23 '15 at 16:10
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What is a StackOverflowError?
...
else
recursivePrint(++num);
}
public static void main(String[] args) {
StackOverflowErrorExample.recursivePrint(1);
}
}
In this example, we define a recursive method, called recursivePrint that prints an integer and then, calls itself, with the next successive in...
Event system in Python
...t to publish is
determined by 'signal', which is nothing more than a name (string).
Mediator pattern
Might be of interest as well: the Mediator pattern.
Hooks
A 'hook' system is usally used in the context of application plugins. The
application contains fixed integration points (hooks), and each pl...