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How do I print the type or class of a variable in Swift?
... Good, but the question also included Optionals, output of optionals are set in Optional(...), so your code would only return Optional as the Type. It should also show var optionalTestVar: Person? = Person(name:"Sarah") as Optional(Person) and var with Person! as ImplicitlyUnwrappedOptional(Person...
How do I do multiple CASE WHEN conditions using SQL Server 2008?
...needed to add a year and month variable
declare @yr int
declare @mth int
set @yr=(select case when month(getdate())=1 then YEAR(getdate())-1 else YEAR(getdate())end)
set @mth=(select case when month(getdate())=1 then month(getdate())+11 else month(getdate())end)
Now I just add the variable into ...
How to navigate back to the last cursor position in Visual Studio?
...) navigates backward.
ctrl + shift + - (dash) navigates forward.
These settings can be found under Environment -> Keyboard:
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Java, Simplified check if int array contains int
...ses
List<T> list=Arrays.asList(...)
list.contains(...)
2.use HashSet for performance consideration if you use more than once.
Set <T>set =new HashSet<T>(Arrays.asList(...));
set.contains(...)
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What's the difference between a proc and a lambda in Ruby?
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One difference is in the way they handle arguments. Creating a proc using proc {} and Proc.new {} are equivalent. However, using lambda {} gives you a proc that checks the number of arguments passed to it. From ri Kernel#lambda:
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App Inventor 2 ECharts 拓展：基于 ECharts 强大的个性化数据图表展示 · ...
...首页
资源下载
.aix 拓展下载：
cn.fun123.ECharts.aix
demo程序下载：
echats_demo.aia
注：2个拓展是共一个.aix拓展文件，里面分2个拓展组件，导入.aix效果如下：
ECharts.js 图表库非常的丰富，只有你想不到没...
App Inventor 2 标签内容过多，如何做到可上下滑动？ · App Inventor 2 中文网
... edit 高亮或隐藏信息 提交 function HideORDispFeedback() { $("#feedback").toggle();}function makeTitleDraggable(element, titleElement) { let isDragging = false; let offsetX, offsetY; // 只在标题栏上按下时开始拖动 titleEleme...
App Inventor 2 MenuSlide 拓展：滑动菜单效果 · App Inventor 2 中文网
... edit 高亮或隐藏信息 提交 function HideORDispFeedback() { $("#feedback").toggle();}function makeTitleDraggable(element, titleElement) { let isDragging = false; let offsetX, offsetY; // 只在标题栏上按下时开始拖动 titleEleme...
App Inventor 2 SideBarV2 侧边栏拓展 · App Inventor 2 中文网
... edit 高亮或隐藏信息 提交 function HideORDispFeedback() { $("#feedback").toggle();}function makeTitleDraggable(element, titleElement) { let isDragging = false; let offsetX, offsetY; // 只在标题栏上按下时开始拖动 titleEleme...
App Inventor 2 AlphaDialog 对话框扩展 · App Inventor 2 中文网
... edit 高亮或隐藏信息 提交 function HideORDispFeedback() { $("#feedback").toggle();}function makeTitleDraggable(element, titleElement) { let isDragging = false; let offsetX, offsetY; // 只在标题栏上按下时开始拖动 titleEleme...