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What does “:=” do?
... their assignment operator. Languages making the latter choice often use a double equals sign (==) to denote their boolean equality operator.
Note: I found this by searching for colon equals operator
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What is the difference between a reference type and value type in c#?
...eap object or a variable/field (struct). In practice, while structs which do not expose their fields can implement any kind of semantics, the fact that .net allows promiscuous sharing of heap references means heap objects cannot implement mutable value semantics.
– supercat
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What is the JavaScript version of sleep()?
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Great stuff here. I wonder, how does this affects or relates with the modern browsers "active" / "inactive" states after JS calls the "sleep" mode? Can the browser block the sleep as expected for general JS, to recall later when becomes "active", or does i...
Is there a Java equivalent or methodology for the typedef keyword in C++?
... background, I found judicious use of typedef to be incredibly helpful. Do you know of a way to achieve similar functionality in Java, whether that be a Java mechanism, pattern, or some other effective way you have used?
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Interfaces with static fields in java for sharing 'constants'
... example is the SwingConstants interface in Swing, which is implemented by dozens of classes that all "re-export" all of its constants (even the ones that they don't use) as their own.
But don't just take my word for it, Josh Bloch also says it's bad:
The constant interface pattern is a poor us...
How can I list all collections in the MongoDB shell?
In the MongoDB shell, how do I list all collections for the current database that I'm using?
22 Answers
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How do I create a variable number of variables?
How do I accomplish variable variables in Python?
14 Answers
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Is there any way to kill a Thread?
... raise threading.ThreadError("the thread is not active")
# do we have it cached?
if hasattr(self, "_thread_id"):
return self._thread_id
# no, look for it in the _active dict
for tid, tobj in threading._active.items():
if tobj is self:
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How do you automate Javascript minification for your Java web applications?
...Worth noting is that yuicompressor seems to be quite old and most probably does not support ES6 (above comment sounds plausible). From my understanding the latest version of yui (v2.4.8 from 2013) still relies on Mozilla Rhino (github.com/yui/yuicompressor#modified-rhino-files) and supports JavaScri...
How do I get the row count of a pandas DataFrame?
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(3,3) matrix is bad example as it does not show the order of the shape tuple
– xaedes
Aug 15 '17 at 16:42
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