大约有 47,000 项符合查询结果（耗时：0.0562秒） [XML]
Pandas percentage of total with groupby
...r
19 s ± 77.1 ms per loop
(mean ± std. dev. of 7 runs, 1 loop each)
So now we see x10 speed up on large, high cardinality datasets.
Be sure to UV these three answers if you UV this one!!
share
|
...
problem with and :after with CSS in WebKit
...
It's 2019 now and it's still the same
– Placido
Feb 15 '19 at 7:21
44
...
Parse a .py file, read the AST, modify it, then write back the modified source code
...asy, without writing new .py files! If you expand your question to let us know what you actually want to accomplish, new .py files will probably not be involved in the answer at all; I have seen hundreds of Python projects doing hundreds of real-world things, and not a single one of them needed to e...
Android Min SDK Version vs. Target SDK Version
...at splitting and using multiple APKs is worse in terms of code complexity. Now you've got to remember to comment in/out or merge through more branches in your source control before you can make each export. When at an Android conference last October, they said they introduced the multiple APK system...
Fade Effect on Link Hover?
...
Nowadays people are just using CSS3 transitions because it's a lot easier than messing with JS, browser support is reasonably good and it's merely cosmetic so it doesn't matter if it doesn't work.
Something like this gets th...
How to create a jQuery plugin with methods?
...tooltip', $.extend(true, {}, $.fn.tooltip.defaults, methodOrOptions));, so now I can access to options whenever I want after the initialization.
– ivkremer
Aug 7 '13 at 11:10
16
...
JavaScript frameworks to build single page applications [closed]
...r, CanJS, Spine
Didn't really look too closely at any of these. Though I know Spine is a similar framework to Backbone with explicit Controller objects, and is written in CoffeeScript.
Afterword
As I mentioned, we ended up using Knockout because, for our project, focusing on view binding was more ...
How to check task status in Celery?
...o True, then the state will be STARTED.
The state PENDING means "I don't know."
An AsyncResult with the state PENDING does not mean anything more than that Celery does not know the status of the task. This could be because of any number of reasons.
For one thing, AsyncResult can be constructed wi...
Sorting object property by values
...ing exactly what you set out to do. That would work in all the browsers I know of, but it would be dependent on an implementation quirk, and could break at any time. You should never make assumptions about the order of elements in a JavaScript object.
var objSorted = {}
sortable.forEach(function(ite...
How do I unit test web api action method when it returns IHttpActionResult?
...d example for a Get operation...i changed the status code to different one now...
– Kiran Challa
Nov 12 '13 at 21:22
4
...