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Tricky Google interview question
A friend of mine is interviewing for a job. One of the interview questions got me thinking, just wanted some feedback.
21 A...
Can anonymous class implement interface?
Is it possible to have an anonymous type implement an interface?
9 Answers
9
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How can I print the contents of a hash in Perl?
I keep printing my hash as # of buckets / # allocated.
How do I print the contents of my hash?
11 Answers
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Access to private inherited fields via reflection in Java
I found a way to get inherited members via class.getDeclaredFields();
and acces to private members via class.getFields()
But i'm looking for private inherited fields.
How can i achieve this?
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MySQL INNER JOIN select only one row from second table
I have a users table and a payments table, for each user, those of which have payments, may have multiple associated payments in the payments table. I would like to select all users who have payments, but only select their latest payment. I'm trying this SQL but i've never tried nested SQL sta...
Is it safe to remove selected keys from map within a range loop?
How can one remove selected keys from a map?
Is it safe to combine delete() with range, as in the code below?
4 Answers
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Which are more performant, CTE or temporary tables?
Which are more performant, CTE or Temporary Tables ?
12 Answers
12
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e.printStackTrace equivalent in python
...ow that print(e) (where e is an Exception) prints the occurred exception
but, I was trying to find the python equivalent of Java's e.printStackTrace() that exactly traces the exception to what line it occurred and prints the entire trace of it.
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__proto__ VS. prototype in JavaScript
What are the differences between __proto__ and prototype ?
30 Answers
30
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What does the star operator mean, in a function call?
...ence/collection into positional arguments, so you can do this:
def sum(a, b):
return a + b
values = (1, 2)
s = sum(*values)
This will unpack the tuple so that it actually executes as:
s = sum(1, 2)
The double star ** does the same, only using a dictionary and thus named arguments:
value...