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Detect permission of camera in iOS

... - Alert let cameraUnavailableAlertController = UIAlertController (title: "Camera Unavailable", message: "Please check to see if it is disconnected or in use by another application", preferredStyle: .Alert) let settingsAction = UIAlertAction(title: "Settings", style: .Destructive) { (_) -&g...
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UDP 实验 - 两台手机在局域网里互发消息 · App Inventor 2 中文网

... 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 titleElement.onmousedown = function(e) { isDragging = true; offset...
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Is there an easy way to return a string repeated X number of times?

... This is a very useful trick of C#, but the title of the question is asking about a string (not a char). The other answers below this one are actually answering the question, but are rated much lower. I'm not trying to disrespect Ahmad's answer, but I think either ...
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LINQ query to select top five

... [Offering a somewhat more descriptive answer than the answer provided by @Ajni.] This can also be achieved using LINQ fluent syntax: var list = ctn.Items .Where(t=> t.DeliverySelection == true && t.Delivery.SentForDelivery == null) ...
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Select last N rows from MySQL

...en you just do a php array_reverse() or whatever the equivalent is in your scripting language of choice. The database doesn't need to do that work. – Joe Aug 7 '16 at 22:58 7 ...
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Add custom icons to font awesome

...And here's a CodePen that shows how something similar might be done in <script> blocks. In either case, it simply involves using library.add() to add an object like this: export const faSomeObjectName = { // Use a prefix like 'fac' that doesn't conflict with a prefix in the standard Font A...
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使用App Inventor扩展实现多点触控:Scale Detector 缩放检测 · App Inventor 2 中文网

... 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 titleElement.onmousedown = function(e) { isDragging = true; offset...
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How to line-break from css, without using ?

...nt: no extra markup. In a blockquote, the example below displays both the title and the source link and separate the two with a carriage return ("\a"): blockquote[title][cite]:after { content:attr(title)"\a"attr(cite) } ...
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App Inventor 2 计步传感器与距离测量教程 · App Inventor 2 中文网

... 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 titleElement.onmousedown = function(e) { isDragging = true; offset...
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How to set size for local image using knitr for markdown?

...h Pandoc . Per this post , this will insert the local image : ![Image Title](path/to/your/image) 8 Answers ...