大约有 30,000 项符合查询结果（耗时：0.0517秒） [XML]
Django filter versus get for single object?
... this with get().
Finally, the first option is both shorter and omits the extra temporary variable - only a minor difference but every little helps.
share
|
improve this answer
|
...
How can I add an element after another element?
... it. I'd normally have the '#bla' input selected already, and then add the extra content afterwards. Purely my preference though, I'm not sure whether either method has a speed benefit.
– Rowan
Feb 11 '10 at 13:25
...
How to send a command to all panes in tmux?
...p a key binding - without the prefix, if you like - to toggle and focus an extra pane with your shell of choice, instead of sending <prefix>: before each command, losing the output after leaving the command, and all of the pitfalls that come with executing through Tmux. For example, <prefix...
Check if a program exists from a Makefile
...= $(foreach exec,$(EXECUTABLES),\
$(if $(shell which $(exec)),some string,$(error "No $(exec) in PATH")))
Note the use of the := assignment operator that is required in order to force immediate evaluation of the RHS expression. If your Makefile changes the PATH, then instead of the last li...
What is android:weightSum in android, and how does it work?
...ren. This causes the children to receive some but not all of the available extra space. In the example above, your single child would inherit half of the available space instead of all of it.
– Edward Falk
Oct 26 '15 at 23:52
...
efficient way to implement paging
...ple?
We don't use LINQ or straight access to the tables as we require the extra layer of security (granted the dynamic SQL breaks this somewhat).
Something like this should do the trick. You can add in parameterized values for parameters, etc.
exec sp_executesql 'WITH MyCTE AS (
SELECT TOP (...
What is the difference between the Eclipse Package Explorer and the Eclipse Project Explorer?
...ther languages and project types as well.
Additional plugins contributes "extra information" to the Project Explorer view making it much more "sophisticated". For example if you have the web tools installed and you have a Dynamic Web Project, the Project Explorer shows you additional tree nodes lik...
Change the name of the :id parameter in Routing resources for Rails
...asily change the name for routes created in this way by just passing in an extra option.
Details
I assume you've already somehow gotten the application working the way you want in the past year, but I will go into a way to get the effect you describe in Rails 3 in routes.rb. It will just involve a...
How to efficiently count the number of keys/properties of an object in JavaScript?
...).length worked best for me, because my return object is sometimes a plain string with no properties within it. _.size(obj) gives me back the length of the string, while _.keys(obj).length returns 0.
– Jacob Stamm
Nov 23 '15 at 23:02
...
How do I Sort a Multidimensional Array in PHP [duplicate]
...set contains columns that cannot be compared in a "dumb" manner (e.g. date strings) you can also specify how to convert these items to a value that can be directly compared (e.g. a DateTime instance).
It's associative if you want: this code takes care of sorting items, but you select the actual sort...