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How to play a local video with Swift?

... }) } } private func startLoading(){ var error:NSError? guard let asset = urlAsset else {return} let status:AVKeyValueStatus = asset.statusOfValueForKey("tracks", error: &error) if status == AVKeyValueStatus.Loaded { assetDur...
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Why are Oracle table/column/index names limited to 30 characters?

...RRM which is limited to 255 characters, and which most clients use to make errors visible. I suspect increasing the allowable size of constraint names significantly would impact the ability to report on the violations (especially where a constraint violation has been bubbled up through a few layers ...
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多媒体组件 · App Inventor 2 中文网

...器组件是一个类似按钮的组件。当用户单击该组件时,将提示他们从系统中选择一个文件。 还可以通过调用其 打开 方法以编程方式打开选择器。 使用文件选择器组件需要 Android 4.4 或更高版本、iOS 11 或更高版本。要求AI伴侣v2...
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Define variable to use with IN operator (T-SQL)

I have a Transact-SQL query that uses the IN operator. Something like this: 14 Answers ...
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No Exception while type casting with a null in java

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Write a function that returns the longest palindrome in a given string

I thought of a solution but it runs in O(n^2) time 22 Answers 22 ...
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How do I clear/delete the current line in terminal?

If I'm using terminal and typing in a line of text for a command, is there a hotkey or any way to clear/delete that line? 1...
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Split a module across several files

...d the module. Add a mod math; in main.rs. If you don't do that, you get an error message from the compiler when importing like this: error: unresolved import `math::Matrix`. Maybe a missing `extern crate math`? The hint is misleading here. There's no need for additional crates, except of course y...
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Scala list concatenation, ::: vs ++

Is there any difference between ::: and ++ for concatenating lists in Scala? 4 Answers ...
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Is the sizeof(some pointer) always equal to four?

...ntation . – Gob00st Nov 3 '12 at 23:05 5 @Eclipse yes there is: char <= short <= int <= ...