大约有 24,971 项符合查询结果（耗时：0.0518秒） [XML]
What is the difference between save and export in Docker?
I am playing around with Docker for a couple of days and I already made some images (which was really fun!). Now I want to persist my work and came to the save and export commands, but I don't fully understand them.
...
How do you know when to use fold-left and when to use fold-right?
I'm aware that fold-left produces left-leaning trees and fold-right produces right-leaning trees, but when I reach for a fold, I sometimes find myself getting bogged down in headache-inducing thought trying to determine which kind of fold is appropriate. I usually end up unwinding the entire proble...
T-SQL stored procedure that accepts multiple Id values
Is there a graceful way to handle passing a list of ids as a parameter to a stored procedure?
6 Answers
...
Why does Sql Server keep executing after raiserror when xact_abort is on?
I just got surprised by something in TSQL. I thought that if xact_abort was on, calling something like
4 Answers
...
How often does python flush to a file?
...
Active
Oldest
Votes
...
Pandas: create two new columns in a dataframe with values calculated from a pre-existing column
I am working with the pandas library and I want to add two new columns to a dataframe df with n columns (n > 0).
These new columns result from the application of a function to one of the columns in the dataframe.
...
Why use argparse rather than optparse?
I noticed that the Python 2.7 documentation includes yet another command-line parsing module. In addition to getopt and optparse we now have argparse .
...
How does zip(*[iter(s)]*n) work in Python?
...s)]*n) work? What would it look like if it was written with more verbose code?
6 Answers
...
How do I ignore the initial load when watching model changes in AngularJS?
I have a web page that serves as the editor for a single entity, which sits as a deep graph in the $scope.fieldcontainer property. After I get a response from my REST API (via $resource), I add a watch to 'fieldcontainer'. I am using this watch to detect if the page/entity is "dirty". Right now I'm ...
Is there a CSS selector by class prefix?
I want to apply a CSS rule to any element whose one of the classes matches specified prefix.
4 Answers
...