大约有 40,700 项符合查询结果(耗时:0.0676秒) [XML]
Do you have to put Task.Run in a method to make it async?
...ant to create a very simple method that adds two numbers for the sake of this example, granted, it's no processing time at all, it's just a matter of formulating an example here.
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Shortest way to print current year in a website
...).getFullYear() may look a bit odd, but it's reliable: the new Date() part is done first, then the .getFullYear().
You can drop the type, because JavaScript is the default; this is even documented as part of the HTML5 specification, which is likely in this case to be writing up what browsers already...
Status bar won't disappear
...tion and I want the status bar hidden. When I test the app, the status bar is hidden whilst the splash screen is shown, but once the app is fully loaded, the status bar reappears.
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Why XML-Serializable class need a parameterless constructor
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edited Jul 1 '18 at 21:21
Mateusz Piotrowski
5,566...
How to avoid passing parameters everywhere in play2?
... in views. Since we don't need to explicitly declare parameters in view, this is very easy.
5 Answers
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Is it possible to disable the network in iOS Simulator?
I am trying to debug some inconsistent behaviour I am seeing in an application that gets its primary data from the internet. I don't see the issues in the simulator, just on the device, so I'd like to reproduce the network and connectivity environment in the simulator.
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What is a regular expression for a MAC Address?
In this format:
21 Answers
21
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What is the best way to conditionally apply attributes in AngularJS?
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answered May 21 '13 at 12:15
Ashley DavisAshley Davis...
How to clear the canvas for redrawing
... the canvas I'm now trying to remove images and compositing. How do I do this?
23 Answers
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Counting null and non-null values in a single query
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This works for Oracle and SQL Server (you might be able to get it to work on another RDBMS):
select sum(case when a is null then 1 else 0 end) count_nulls
, count(a) count_not_nulls
from us;
Or:
select count(*) - co...
