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Is it possible to make abstract classes in Python?
...ct using one of three ways, depending upon your Python version.
In Python 3.4 and above, you can inherit from ABC. In earlier versions of Python, you need to specify your class's metaclass as ABCMeta. Specifying the metaclass has different syntax in Python 3 and Python 2. The three possibilities ar...
C++ auto keyword. Why is it magic?
... templates on any compiler that even sort of attempted to implement C++98/03. As such, adding support for auto was apparently fairly easy for essentially all the compiler teams--it was added quite quickly, and there seem to have been few bugs related to it either.
When this answer was originally wr...
Get nth character of a string in Swift programming language
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Attention: Please see Leo Dabus' answer for a proper implementation for Swift 4 and Swift 5.
Sw...
Loop through an array php
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edited Apr 30 at 18:11
anaszaman
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answered Dec 11 '10...
How do I capture bash output to the Mac OS X clipboard?
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Java: possible to line break in a properties file?
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How to check if object has any properties in JavaScript?
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edited Dec 4 '18 at 3:39
Reese Jones
6855 bronze badges
answered Apr 20 '10 at 6:49
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(Deep) copying an array using jQuery [duplicate]
...pying, it is not suitable for multidimensional arrays:
var a =[[1], [2], [3]];
var b = a.slice();
b.shift().shift();
// a is now [[], [2], [3]]
Note that although I've used shift().shift() above, the point is just that b[0][0] contains a pointer to a[0][0] rather than a value.
Likewise delete...
Error:(1, 0) Plugin with id 'com.android.application' not found
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Updated Answer (Apr. 10, 2020)
Latest Gradle: 6.3
Version check:
./gradlew -v
How to update:
Set URL: ./gradlew wrapper --gradle-version=3.6.2 --distribution-type=all
Update: ./gradlew wrapper
Latest Android Gradle Plugin: 3.6.2
If you add the following code snippet to...
Confusion: @NotNull vs. @Column(nullable = false) with JPA and Hibernate
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330
@NotNull is a JSR 303 Bean Validation annotation. It has nothing to do with database constrain...