大约有 40,000 项符合查询结果(耗时:0.0696秒) [XML]

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background-size in shorthand background property (CSS3)

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@Scope(“prototype”) bean scope not creating new bean

... every time that you need a prototype inside a singleton bean. Example: @Service @Scope(value="prototype", proxyMode=ScopedProxyMode.TARGET_CLASS) public class LoginAction {} With the config above LoginAction (inside HomeController) is always a prototype even though the controller is a single...
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Check if array is empty or null

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Add a number to each selection in Sublime Text 2, incremented once per selection

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How to run a single RSpec test?

... Usually I do: rspec ./spec/controllers/groups_controller_spec.rb:42 Where 42 represents the line of the test I want to run. EDIT1: You could also use tags. See here. EDIT 2: Try: bundle exec rspec ./spec/controllers/gro...
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Why and How to avoid Event Handler memory leaks?

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Why does my application spend 24% of its life doing a null check?

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Cannot pass null argument when using type hinting

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How do I use NSTimer?

...ewController double timerInterval = 1.0f; - (NSTimer *) timer { if (!_timer) { _timer = [NSTimer timerWithTimeInterval:timerInterval target:self selector:@selector(onTick:) userInfo:nil repeats:YES]; } return _timer; } - (void)viewDidLoad { [super viewDidLoad]; [[NSRu...
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Checking out Git tag leads to “detached HEAD state”

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